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Service Manual

1. Connector A Connector B Connector C Connector D Connector A Connector B 2 B OCV OCV 10 20 30 40 E01 E2 2 OXH1 OXH2 2 2 52 22 ISC IG1 2 IG3 4 Na N22 VCPM VC THW VTH ICM ICM ICM ICM B1 B2 B3 B4 ALT ALTC N1 N2 E1 PST OX1 2 Connector C Connector D DEF HCAN LCAN CANH CANL ACSW 2 ACEV FPOF STP BLW A T MRO BAT 1 MGC 1 FAN2 IGSW REV SIO2 E21 EFIT STSW 1 Only For General Export 2 Only For Europe A139505J01 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 17 ECU TERMINAL VOLTAGE CHART EFI SYSTEM Terminal Name Input Standard Terminal No Output V lt E1 38 3125 Input Always 10 14 lt E1 3 s P 27 3125 Input Engine is stopped ignition switch is ON 10 14 IGSW lt E1 hi 120 125 Input Engine is stopped ignition switch is ON 10 14 MRO lt gt E1 WEN RI 39 125 Input Engine is stopped ignition switch is ON 10 14 VC lt E2 dk 56 19 Input Engine is stopped ignition switch is ON 4 5 5 5 IG1 lt E1 Pulse is generated 632125 Output Engine is idling Waveform 1 IG2 lt E1 OB Pulse is generated 6
2. Symptom Suspected Area See Page 1 Starter assembly ST 10 Engine does not crank 2 Starter relay ST 21 3 Neutral start switch system AT 57 1 See flowchart ECU power source ES 120 2 Igniter system IG 1 No initial combustion engine does not start 3 See flowchart fuel pump control system ES 115 4 Injector FU 12 5 Crank position sensor system IG 14 1 See flowchart fuel pump control system ES 115 2 Igniter system IG 1 Incomplete combustion engine does not start 3 Injector FU 12 4 Crank position sensor system IG 14 1 Throttle body system ES 129 2 See flowchart fuel pump control system ES 115 3 Igniter system IG 1 Engine does not start but cranks normally 4 Spark plug IG 18 5 Compression 2 6 Injector FU 12 7 Crank position sensor system IG 14 1 Throttle body system ES 129 2 See flowchart fuel pump control system ES 115 3 Injector FU 12 Engine does not start when cold 4 Igniter system IG 1 5 Spark plug IG 18 6 Crank position sensor system IG 14 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 5 Symptom Suspected Area See Page 1 Throttle body system ES 129 2 See flowchart fuel pump control system ES 115 3 Injector FU 12 Engine does not start when warm 4
3. A133915J01 CHECK AND REPLACE ENGINE CONTROL COMPUTER a Disconnect the engine control computer connector and the connector of cooler thermistor No 1 b Using a tester check whether there is continuity or a short between the engine control computer vehicle side connector C and the connector terminals of cooler thermistor No 1 For terminal layout see page ES 16 Standard Tester Connection Terminal Symbol Engine Control Computer Cooler Thermistor No 1 Evaporator Rear Sensor Standard There is continuity and no short 45 lt 1 between the other terminals and body ground There is continuity and no short 116 E21 2 between the other terminals and body ground gt REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE 5 89 1105 32 ATMOSPHERIC PRESSURE SENSOR SIGNAL SYSTEM DESCRIPTION The atmospheric pressure sensor is built into the EFI ECU DTC Detection Condition 1 Diagnosis Condition DTC No 2 Malfunction Condition Suspected Area 3 Malfunction Time 4 Other 1 After engine start 2 No signals from atmospheric pressure P1105 32 sensor Engine control computer 3 1 second or more 4 1trip INSPECTION PROCEDURE 1 CLEAR DTCs a Connect the DS II to the DLC b Delete the DTCs using the DS II 2 READ DTCs a Connect the 05 11 to the DLC
4. 1 2 Continuity o 3 5 No continuity aj 2 Using tester make sure that there is continuity between terminals 3 and 5 when battery voltage is applied between 133875 terminals 1 and 2 Standard Continuity gt FUEL PUMP RELAY ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 117 EB CHECK EFI RELAY a Check for continuity 1 Using a tester inspect the resistance between the terminals Standard Terminals Continuity mfi 1 2 Continuity e 3 5 No continuity aj 2 Using a tester make sure that there is continuity between terminals 3 and 5 when battery voltage is applied between P 133875 terminals 1 and 2 Standard Continuity gt EFI RELAY CHECK WIRE HARNESS AND CONNECTOR ENGINE CONTROL COMPUTER F P RELAY Disconnect the engine control computer connector D Remove F P relay o mo c Using a tester check for the continuity and short between the engine control computer and the relay block holder for the fuel pump relay Engine Control Computer For terminal layout see page ES 16 Standard CEEEELEN lmn CCELI ES E Tester Connection Terminal Symbol Engine control computer Relay Standard
5. gt REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR CHECK AND REPLACE ENGINE CONTROL COMPUTER CHECK FUEL PUMP CHECK RESISTANCE 1 Using a tester measure the resistance between terminal 3 and 4 of the fuel pump connector Reference Value 0 2 to 3 0 O 20 b CHECK OPERATION 1 Apply the battery voltage between terminal 3 and 4 of the S tb fuel pump connector and check the motor rotates NOTICE 134990 Perform the check for very short time less than 10 seconds Keep the pump as far away from the battery as possible Make sure to perform the switching on the battery terminal side gt REPLACE FUEL PUMP CHECK WIRE HARNESS OR CONNECTOR BETWEEN EFI CIRCUIT OPENNING RELAY AND FUEL PUMP a Disconnect the connector of fuel pump b Remove F P relay ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE Fuel Pump Relay Vehicle Side Connector C gt 000000 00000000 A138316J01 ES 119 c Using a tester check for the continuity and short between relay block holder for F P relay and fuel pump and between fuel pump and body ground Standard Tester Connection Relay Block Holder For EFI Relay lt gt Standard Fuel Pump There is continuity and no short 3 993 between the other terminals and b
6. A103583J06 A134292 REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR HINT The communication between the engine control computer and the cam shaft oil control valves can be checked using the oscilloscope function of the DS II a Connect the 05 11 between terminals 26 and 25 of the engine control computer connector For terminal layout see page ES 16 b Set the DS II to the oscilloscope function See the DS II instruction manual for the setting procedures Item Tester Connection Condition OCV OCV Tool setting 5 VIDIV 20 ms DIV Measurement Condition While engine is idling HINT As the engine speed increases the waveform cycle becomes shorter nos CHECK AND REPLACE ENGINE CONTROL COMPUTER ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE CHECK FOR INTERMITTENT PROBLEMS ES 111 ES 112 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE DTC U0101 82 EAT CVT COMMUNICATION RECEPTION DTC U0121 86 ABC COMMUNICATION RECEPTION DTC 00156 87 METER COMMUNICATION RECEPTION DTC U1000 85 EAT COMMUNICATION TRANSMISSION U1002 88 CAN COMMUNICATION DESCRIPTION Via CAN communication the engine control computer sends and receives signals to and from the transmission control computer the skid control computer and the combination meter DTC Detection Condition 1 Diagnosis Condition DTC No 2 Malfunction
7. REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR A133576J05 REPLACE OXYGEN SENSOR 2 S a Connect the 05 11 to the DLC 5 78 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE b Turn the ignition switch to the ON position and delete the DTCs by following the prompts on the DS II screen c check the system warm up the oxygen sensor No 2 by performing a road test HINT Refer to the procedure for the oxygen sensor No 2 output voltage inspection READ DTC EXT a Connect the DS II to the DLC b Turn the ignition switch to the ON position and read the DTCs by following the prompts on the 5 screen 1 Check if DTC P0420 27 is indicated Result A B P0420 27 is output again P0420 27 is not output again CHECK FOR INTERMITTENT PROBLEMS CHECK AND REPLACE ENGINE CONTROL COMPUTER ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE 5 79 DTC P0443 76 EVAP PURGE VSV DESCRIPTION Evap purge VSV controls evaporation purge volume based on a signal duty signal from the engine control computer Purge volume is determined based on the ON OFF time ratio duty ratio DTC Detection Condition 1 Diagnosis Condition DTC No 2 Malfunction Condition Suspected Area 3 Malfunction Time 4 Other _ E EE signal malfunction VSV 0443 76 Wire harness or connector 3 VSV operates more than 3 times 4 2trip Engine contr
8. b Turn the ignition switch to the ON position c Measure the voltage between the terminals of the engine control Engine Control Computer computer connector using a tester For terminal layout see page ES 16 55 Standard HELD RID Tester Connection Terminal Symbol Standard lt 39 MRO 125 E1 9 to 14 V E1 MRO NG gt CHECK AND REPLACE ENGINE CONTROL A133549J13 COMPUTER ES 124 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE INSPECT FUSE EFI a Remove the EFI fuse from the engine room R B and check for Engine Room R B continuity using a tester To Standard Continuity CHECK ALL WIRE HARNESSES AND UD DEVICES CONNECTED TO EFI FUSE EFI Fuse A133909J01 9 CHECK EFI COMPUTER RELAY Check for continuity 1 Using a tester inspect the resistance between the terminals Standard Terminals Continuity 8 1 2 Continuity 9 E 3 5 No continuity aa 2 Using a tester make sure that there is continuity between terminals 3 and 5 when battery voltage is applied between terminals 1 and 2 Standard Continuity gt REPLACE EFI COMPUTER RELAY A133875 a Disconnect the ne
9. Sensor Camshaft Position Starter Oxygen Sensor NO 2 1 2 Throttle Position 2 Coolant Temperature 1 Sensor 1 Intake Air Temperature 2 Sensor 54 21 55 16 19 20 65 125 Engine Control Computer aL A138429J01 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 15 EU Specifications To IG2 Ignition Coil Assembly No 1 Cylinder Ignition Coil Assembly No 2 Cylinder Stop Light Switch Assembly Battery Defogger Ignition Coil Assembly No 3 Cylinder Defogger Switch O 61 49 1 2 To DEF Fuse 61 Ignition Coil Assembly 48 No 4 Cylinder yyy To Ignition Plugs 3 Intake Air 1 jo 2 Pressure Sensor Condensor m nsn 2 L Temperature Sensor Engine Check Light 5 Pressure Switch OOO Br Fan Motor Immobiliser ECU FA t Airbag ECU Alternator 1354 To A C 9 7 DLC 61 A T ECU To Deicer Specifications For Cold Region Vehicles Engine Control Computer A138430J01 5 16 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ECU TERMINALS
10. block holder for F P relay Continuity no short between EG 35 FC1 2 terminal other terminals and body ground FAN 2 For Europe FAN2 for European spec NOTICE Be careful not to damage the holder part by pressing it too hard when inspecting by applying the tester probe to the holder DOOOCCC 000000 REPAIR WIRE HARNESS CONNECTOR A133876J02 6 CHECK WIRING HARNESS OR CONNECTOR a Remove EFI fuse E G fuse and relay fuel pump relay EFI relay b Using a tester check for the continuity and short between terminals of each socket ES 118 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE Standard Tester Connection Terminal Symbol Standard Continuity and no short between other terminals and body F P relay 5 terminal EFI relay 3 terminal ground Continuity and no short between other terminals and body F P relay 1 terminal lt E G fuse 2 terminal ground Continuity and no short between other terminals and body EFI relay 5 terminal EFI fuse 2 terminal ground Continuity and no short between other terminals and body EFI relay 1 terminal EFI fuse 2 terminal ground NOTICE Be careful not to damage the holder part by pressing it too hard when inspecting by applying the tester probe to the holder
11. 1 RSO between the other terminals and body ground ISC gt OR REPLACE WIRE HARNESS OR CONNECTOR ISCV Vehicle Side Connector RSO B RSC A133869 ER CHECK THROTTLE BODY IDLE SPEED CONTROL VALVE ASSEMBLY NOTICE Delete the DTCs after the inspection Remove the ISCV CHECK OPERATION 1 Connect the wire harness to the removed ISCV 5 86 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE 2 With the ignition in the ON position check the operation of the valve Standard Neutral 50 open Fully closed Fully open Neutral 50 open HINT Operation should start within 0 5 seconds gt gt REPLACE THROTTLE BODY IDLE SPEED CONTROL VALVE ASSEMBLY CHECK AND REPLACE ENGINE CONTROL COMPUTER DESCRIPTION Cooler thermistor No 1 evaporator rear sensor is installed in the evaporator of the air conditioner unit Cooler thermistor No 1 senses the temperature of the cooled air that has passed through the evaporator as a change in resistance It outputs this change ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE P0535 44 SIGNAL SYSTEM in resistance to the engine control computer EVAPORATOR TEMPERATURE SENSOR DTC No 1 2 P0535 44 3 4 DTC Detection Condition 1 Diagnosis Condition 2 Malfunction Condition 3 Malfunction Time 4 Other IG ON Open or short in cooler thermistor No 1 evaporator rear sensor circui
12. Connect the SST sub harness EFI computer check to the engine control computer b Turn the ignition switch to the ON position c Using a tester measure the voltage between terminals 56 VC and 19 E2 of the engine control computer connector For terminal Engine Control Computer layout see page ES 16 Standard 4 5 to 5 5 V CHECK AND REPLACE ENGINE CONTROL COMPUTER A133549J04 ES 42 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE CHECK WIRE HARNESS AND CONNECTOR ENGINE CONTROL COMPUTER THROTTLE POSITION SENSOR Engine Control Computer x b o Mg M E2 Throttle Position Sensor Vehicle Side Connector A133574J03 a Disconnect the engine control computer connector B and the throttle position sensor connector b Using a tester check whether there is continuity or a short between the engine control computer vehicle side connector and the throttle position sensor vehicle side connector For terminal layout see page ES 16 Standard Inspection Terminal Terminal Name Engine control computer Standard Throttle position sensor There is continuity and no short 56 VC 1 between other terminals and body ground There is continuity and no short 19 E2 gt 2 E2 between other terminals CHECK AND REPLACE ENGINE CONTROL COMPU
13. Crankshaft Position Sensor N1 Signal Camshaft Position Sensor N2 Signal Knock Control Sensor Throttle Position Sensor Intake Pressure Sensor Coolant Temperature Sensor Starter Signal Neutral Start Switch Battery Ignition Coil Assembly No 1 No 1 Cylinder Ignition Coil Assembly No 2 L No 2 Cylinder gt 4 Ingnition Coil Assembly No 1 Ignition Coil Assembly No 4 A133588 DTC No 1 0350 16 2 3 4 DTC Detection Condition 1 Diagnosis Condition 2 Malfunction Condition 3 Malfunction Time 4 Other At time of engine start and when engine is operating at 1500 r min or less No IG signals continuously Approx 30 seconds 1 trip Suspected Area Wire harness or connector IGNITION ASSEMBLY Engine control computer ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 73 CIRCUIT DIAGRAM Ignition Coil Assembly No 1 Cylinder Engine Control Computer To IG2 Fuse m IG1 ES w Ignition Coil Assembly No 2 Cylinder IG2 w o N Ignition Coil Assembly No 3 Cylinder IG3 w x Ignition Coil Assembly No 4 Oylinder 1 3 60 IG4 4 A133589J01 INSPECTION PROCEDURE HINT Read the freeze frame data using the DS Il Freeze frame data records aspects of the engine
14. E1 Tool setting 5 VIDIV 50 ms DIV Measurement Engine is idlin condition 9 9 If the waveform shown in the illustration is not indicated idle the engine for 10 minutes and recheck the waveform i Waveform 9 Tester Connection REV lt E1 Tool setting 5 VIDIV 10 ms DIV Measurem nt Engine is idling condition HINT As the engine speed increases the waveform cycle becomes shorter j Waveform 10 Tester Connection OCV lt gt OCV Tool setting 5 V DIV 1 ms DIV Measurement Engine is idling condition HINT As the engine speed increases the waveform cycle becomes shorter ECU DATA LIST ACTIVE TEST 1 ECU DATA LIST CHART NOTICE As the data list values may vary widely depending on slight measurement errors the measurement environment or the state of the vehicle due to wear and tear it is very difficult to indicate specific standard reference values Therefore in some cases an error may occur within the range of reference values Fordelicate symptoms such as stumbling rough idle obtain and compare multiple test data using the same vehicle under the same conditions and determine problems wholistically by considering all suspected items on the data list values Item Shorted Item MIL status MIL Item Description Illumination condition of the check engine warning light ON on OFF off Inspection Condition Reference Va
15. Inlet Air Temperature Sensor Engine Control Computer WWW G100102J24 INSPECTION PROCEDURE HINT Read the freeze frame data using the DS Il Freeze data records aspects of the engine s condition when malfunctions occur This information is helpful when troubleshooting READ DS Il DATA INTAKE AIR TEMPERATURE a b Connect the DS II to the DLC Read the intake air temperature indicated on the 05 11 while the ignition switch is turned to the ON position and the engine is stopped Result Tester Display Proceed to 40 140 Equivalent to ambient temperature C gt CHECK FOR INTERMITTENT PROBLEMS Em 2 READ DS Il DATA WIRE HARNESS OPEN CIRCUIT INSPECTION SST 09843 18020 5 33 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE Inlet Air Temperature Sensor Vehicle Side Connector A133551J01 a b o Disconnect the intake air temperature sensor connector Short the circuit between terminals 2 and 1 of the inlet air temperature sensor vehicle side connector using the SST diagnosis check wire Connect the DS II to the DLC Turn the ignition switch to the ON position Read the inlet air temperature displayed on the DS II Standard 140 C REPLACE INTAKE AIR TEMPERATURE SENSOR 3 READ DS Il DATA CHECK FOR OPEN ENGINE CONTROL COMPUTER Engi
16. angle equivalency Engine is warmed VTB equivalency idlin 15 52 VTH voltage Displayed range 15 to 90 9 Indicates VVT angle equivalency Pu dn sos 3000 r min VTB equivalency speed 15 62 VTH voltage Displayed range 15 to 90 9 P Indicates duty ratio of VVT Control duty ratio control Engine is warmed up and 5 DVT Displayed range 0 to idling 20 50 VTH voltage 100 Indicates duty ratio of VVT Control duty ratio control 3000 r min 20 509 VTH volt DVT Displayed range 0 to Constant engine speed 5 Mince 100 Actual air intake pressure Displayed range 0 to 120 Engine is stopped 80 to 110 kPa PIM voltage PMVTB kPa 224 Indicates the actual air intake pressure Engine is warmed up and pressure 2 9 p 20 to 40 kPa PIM voltage Displayed range 0 to 120 idling PMVTB kPa Actual air intake Wie zou 2000 r min pressure 19 to 39 kPa PIM voltage Displayed range 0 to 120 Constant engine speed PMVTB kPa Stop lamp signal Indicates stop lamp signal Brake pedal is released gt OFF gt ON STP voltage STP input depressed Power steering signal Indicates power steering Steering wheel is centered OFF gt ON EPS voltage PST signal input turned Number of DTCs the number of DIAG Displayed range 0 to 255 ENGINE CONTROL EFI SYSTEM 3SZ VE 2 ACTIVE TEST
17. A139327 B000069 5 CHECK VACUUM SENSOR a Turn the ignition switch to the ON position b Measure the voltage between the terminals of the vacuum sensor connecter using the tester Intake Pressure Sensor Standard Tester Connection Terminal Symbol Standard 3 lt 1 E2 4 5 to 5 5 V 2 1 E2 3 1 to 4 1V c Remove the fuel pump relay and crank the engine then measure the voltage between the terminals of the vacuum sensor connector A133547J01 Standard Tester Connection Terminal Symbol Standard 2 lt 1 E2 Voltage value fluctuates gt REPLACE THE VACUUM SENSOR 5 62 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES CHECK WIRE HARNESS AND CONNECTOR a Disconnect connector A of the engine control computer and disconnect the connectors of each fuel injector b Using a tester check whether there is continuity or a short between the engine control computer vehicle side connector and the fuel injector vehicle side connector Standard Installed position Terminal Connection Standard Terminal Symbol There is continuity and no short between other terminals and body ground 1 Cylinder 2 24 10 There is continuity and no short between other terminals and body ground 2 Cylinder 2 23 20 There is continuity no short between other terminals and body ground 3
18. ES 69 system P0350 16 Ignition primary system ES 72 0443 76 EVAP purge VSV ES 79 P0420 27 Catalyst deterioration 5 75 P0500 52 Vehicle speed signal ES 81 system P0505 71 ISC valve system 5 83 evaporator 0535 44 temperature sensor signal x 5 87 system Atmospheric pressure P1105 32 ES 89 sensor signal system P1300 36 lonic current system 5 90 1346 75 valve ES 94 timing fail P4349 73 VVT control advance 5 95 angle and retard angle fail P4351 62 Timing chain control x 5 99 system P1510 54 Starter signal system ES 100 1560 61 Shortto back UD power ES 103 source 5 4 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE DTC No Diagnostic Item Lamp Code Memory See Page Keyless system P1600 83 immobiliser system x ES 105 communication system malfunction in ECU Keyless immobiliser System communication P1601 81 system code does not x ES 106 match communication error P1656 74 control system ES 109 U0101 82 EAT GVT communication ES 112 reception 0121 86 ABS communication ES 112 reception U0156 87 Meter cotn TER ES 112 receiving U1000 85 ES 112 transmission U1002 88 CAN communication O ES 112 PROBLEM SYMPTOMS TABLE
19. K3 VE ES 27 Item Condition Constraint Condition Fuel pump Fuel pump is ON active OFF stopped Purge VSV Purge control VSV is ON current OFF no current All VSV All VSV for purge control are ON current OFF no current T terminal T terminal is ON short OFF short released Radiator fan Radiator fan is ON active OFF stopped ISC stepper ISC active duty ratio setting 50 96 open 5 96 open Vehicle is stopped engine is idling FAIL SAFE CHART If the codes shown below are recorded on the ECU it will go to a fail safe mode Diagnostic Trouble Code Fail safe Operation Fail safe Mode Deactivation Condition Vacuum sensor value is the pressure estimated from the throttle opening angle and the engine speed If the signal from the throttle position sensor is abnormal P0105 31 use the signal from the vacuum sensor as Return to normal condition the constant value f both the throttle opening angle and the engine speed exceed the constant value decrease the fuel amount 0110 43 Use the signal from the intake air temperature nomal condition sensor as the constant value PO115 42 Use the signal from the coolant temperature Bettina condition sensor as the constant value P0120 41 Use the signal from the throttle position Return t normat condition sensor as the constant value P0136 22 Set feedback c
20. 1 Check if DTC P0500 52 is detected Standard Tester Display Proceed to DTC P0500 52 is detected A DTC P0500 52 is not detected B SYSTEM RETURNS TO NORMAL REPAIR OR REPLACE ENGINE CONTROL COMPUTER ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 83 DTC P0505 71 ISC VALVE SYSTEM DESCRIPTION The throttle body idle speed control valve assembly ISCV of the rotary solenoid type is installed on the throttle body The intake air that by passes the throttle valve passes through the passage to the ISCV To control the idle speed the engine control computer controls the intake air passage of the ISC valve and sends a signal to allow the idle speed to be adjusted towards the target idling speed Throttle Valve Intake Air Signal 4 L Engine ECU 4 To Cylinder ISC Valve A050586 DTC Detection Condition 1 Diagnosis Condition DTC No 2 Malfunction Condition Suspected Area 3 Malfunction Time 4 While engine is idling Short or open in ISCV circuit 3 seconds or more 1 trip ISCV Wire harness or connector Engine control computer P0505 33 Pons 5 84 CIRCUIT DIAGRAM ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE To EFI Relay ISCV Engine Control Computer ISC A133591J01 INSPECTION PROCEDURE HINT Read the freeze frame data using the DS Il Freeze frame data records aspects of
21. 40 C A 140 C B Equivalent to actual coolant temperature 5 36 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE gt CHECK FOR INTERMITTENT PROBLEMS READ DS II DATA INSPECT WIRE HARNESS OPEN CIRCUIT SST 09843 18020 a Disconnect the connector of the coolant temperature sensor Short the circuit between terminals 2 and 1 of the water temperature vehicle side connector using the SST diagnosis check wire No 2 c Connect the DS II to the DLC d Turn the ignition switch to the ON position 1 2 li e Read the engine coolant temperature displayed on the DS II Standard 120 C REPLACE COOLANT TEMPERATURE Coolant Temperature Vehicle Side Connector SENSOR 3 READ 05 DATA CHECK FOR OPEN ENGINE CONTROL COMPUTER SST 09843 18020 a Short the circuit between terminals 54 THW and 19 E2 of the engine control computer using the SST diagnosis check wire Engine Control Computer No 2 For terminal layout see page ES 16 b Read the engine coolant temperature displayed on the DS II Standard 120 C CHECK AND REPLACE ENGINE CONTROL COMPUTER A133549J02 REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR 4 READ DS Il DATA INSPECT WIRE HARNESS SHORT CIRCUIT a Disconnect the connector of the coolant temperature sensor b Turn the ignition switch to the ON position
22. A135479J01 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 13 r General Export To IG2 43 Ignition Coil Assembly Stop Light Switch Assembly OSO To Battery STP 10A No 1 Cylinder Ignition Coil Assembly No 2 Cylinder 61 Ignition Coil Assembly No 3 Cylinder Stop Light Defogger Defogger Switch To DEF Fuse 60 Ignition Coil Assembly No 4 Cylinder zi To Ignition Plugs 122 3 9 1 sone 45 l 116 1 Evaporator 2 Temperautre Sensor Engine Check Light 12 FAN Relay 37 0097 Fan Motor 117 L 44 Q Alternator 1 354 Meter ECU EFIT O Engine Control Computer Immobiliser Equipped Vehicles P S Oil Pressure Switch Immobiliser ECU Airbag ECU To A C Tachometer DLC A135480J01 5 14 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE EU Specifications To E1 4 Battery EFI Relay O o AM2 99 AIT ST Relay 1 Ignition Switch 5 MAIN 15 10 Sst 7 5A Crankshaft Position 27 8 F P Relay 000 34 Injector No 1 To Fuel Pump gt 24 Injector No 2 23 Injector No 3 22 Injector No 4 2 3 ISCV EVAP Control VSV 1 N
23. Always occurred Cruising uphill One time only O Increasing o speed Downhill Sometimes o after O Decreasing paved road Ambient air times a day start off y speed L1Wet paved road temperature 0 times a week eck min after start O Braking DlUnpaved rough min driving H Turning road Cold Stopped LlSnowy icy road Warm O Idling manholes etc Others LlOthers Additional Items DTC inspection Po Malfunction Indicator C Normal Code s Fuel pressure when Lamp MIL Off On Malfunction code s all noted engine stopped Shift position range O times a month Fuel pressure 1 min after engine stopped Problem details Inspection Driving conditions and location when problem first occurred and reoccurred Reoccurrence conditions O Always 0 Occasional Once problem occurs it continues 0 Does not reoccur A066666 CHECK CLEAR DTCs 1 PREPARE FOR INSPECTION a Make sure that the throttle valve is fully closed 5 9 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE A136722J02 EFIT D 2 716 5 3 2 1 E G100942 Normal Code 0 25 Sec 0 25 2 Sec Abnormal Code Example 11 23 Repeated 4Sec 1 5 2 5 0 5 Sec 0 5 Sec C040092J07 b c Move t
24. EFI SYSTEM 3SZ VE K3 VE ES 7 GO TO STEP 12 7 BASIC INSPECTION See page ES 1 a Ifthe location of the problem is determined go to b Ifthe location of the problem is not determined go to B GO TO STEP 12 c CHECK USING DS II See page ES 21 a Select ECU data list or active test b Ifthe location of the problem is determined go to c Ifthe location of the problem is not determined go to B GO TO STEP 12 CHECK VOLTAGE OF ECU VOLTAGE AND CIRCUIT See page ES 16 REPAIR PROBLEM AREAS 11 CHECK FOR DIAGNOSTIC TROUBLE CODES See page ES 8 CUSTOMER PROBLEM ANALYSIS CHECK SHEET 1 Ask the customer about problems and concerns a Follow the previous troubleshooting procedure and use the customer problem analysis check sheet to make sure that the proper questions are asked when interviewing the customer about problems ES 8 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE Engine Problem Diagnosis Check Sheet Model Date vehicle brought in Service history No Yes times MN Date registered Registration No Dateproemfrstoccured Odometer reading Accessories 0 0 0 0 0 00 00 0 0 0 0000 0 000 O Customer profile characteristics Description of symptoms Warning light illumination Off On p Driving Problem System Conditions Road Conditions Ch Results Speed problem first O Starting off l 1Level Accelerator
25. IG ON No 1 Opening angle of absolute 190169188 opening angle Accelerator pedal fully VC VTH voltage of throttle valve 1 ee throttle sensor Displayed range 0 to released 64 96 Throttle position sensor TP 100 IG ON No 1 FrO2 sensor output Indicates front O2 sensor output voltage 2500 r min voltage 0to 1 0 V OX1 voltage O2FV Displayed range 0 to Constant engine speed 1 275 Indicates front O2 FrO2 short term fuel trim eid feedback 2500 O2FP ratio Constant engine speed PASA Ote Displayed range 100 3 P to 99 2 Indicat 02 Rie sensor output Sassou idle 2500 voltage 9 0 1 to 0 95 V OX2 voltage O2RV Displayed range 0 to Constant engine speed 1 275 Indicates rear O2 sensor feedback trim RrO2 short term fuel trim 2500 r min O2RP factor Constant engine speed 10 70 Oxz voltage Displayed range 100 9 P to 99 296 Indicates distance Driven distance at time of driven at time DTC is malfunction recorded 0 to 65535 km DWM Displayed range 0 to 65535 km Indicates duty ratio of evaporation purge VSV Qna gu Evaporation purge output Engine is idling after PRG voltage EVAP output warming u 0 Voltage of each sensor Displayed range 0 to g up 3 100 Indicates barometric Barometric pressure pressure BARO Displayed range 0 to Ignition switch is in ON position engine is stopped 255 kPa Power source voltage Indicates battery
26. Standard Ignition Coil Assembly There is continuity and no short 63 IG1 3 IG1 between other terminals and body ground IG1 Ignition Coil Assembly Connector REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR A133590J01 REPLACE IGNITION COIL ASSEMBLY CHECK FOR DTCs a Connect the DS II to the DLC b Read the DTCs by following the prompts on the screen 2 o c B P0350 16 Indicates a normal code SYSTEM RETURNS TO NORMAL REPLACE ENGINE CONTROL COMPUTER ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE 5 75 DTC P0420 27 CATALYST DETERIORATION DESCRIPTION The rear O2 sensor detects oxygen levels after the catalyst If the catalyst has deteriorated the rear O2 sensor signal looks like that of the front O2 sensor repeating lean rich signals in short cycles Therefore the timing of the voltage of the lean rich signal from the rear O2 sensor is calculated and compared to the lean rich signal from the front 02 sensor If this voltage exceeds a set value and the response of the rear O2 sensor from the front O2 sensor signal becomes more rapid than the set value this indicates that the catalyst has deteriorated In this case the DTC shown below will be recorded DTC Detection Condition 1 Diagnosis Condition DTC No 2 Malfunction Condition Suspected Area 3 Malfunction Time 4 Other 1 The vehicle is driven at a speed of 50
27. Terminal Symbol Standard 38 lt 125 E1 10 to 14 V CHECK FOR INTERMITTENT PROBLEMS 2 CHECK FUSE EFI FUSE Engine Room R B UD EFI Fuse A133909J01 a Remove the EFI fuse from the inside of the engine room R B b Using a tester check the EFI fuse for continuity Standard Continuity gt gt REPLACE FUSES CHECK OR REPLACE ENGINE ECU POWER CIRCUIT ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 105 KEYLESS SYSTEM IMMOBILISER SYSTEM DTC P1600 83 COMMUNICATION SYSTEM MALFUNCTION IN ECU DESCRIPTION The transponder key computer assembly immobiliser ECU ensures security by controlling the START END of the communication of matching codes with the engine control computer It does so in accordance with ignition ON OFF status and the immobiliser SET UNSET status If the communication cannot be matched due to a malfunction in the engine control computer a DTC is recorded DTC Detection Condition 1 Diagnosis Condition DTC No 2 Malfunction Condition Suspected Area 3 Malfunction Time 4 Other 1 IGON 2 Communication stopped with immobiliser P1600 83 ECU Engine control computer 3 1 second or more 4 1trip INSPECTION PROCEDURE 1 READ DTCs a Connect the DS II to the DLC
28. b Read the DTCs using the DS II Standard Result Proceed to DTC P1105 32 is detected A DTC P1105 32 is not detected B CHECK FOR INTERMITTENT PROBLEMS REPAIR OR REPLACE ENGINE CONTROL COMPUTER 5 90 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE DTC P1300 36 lONIC CURRENT SYSTEM DESCRIPTION This system detects engine misfires by using the fact that the ionic current generated by combustion pressure has an identical waveform If a misfire occurs ionic current is not generated Therefore when the voltage transmitted to the engine control computer is lower than specified the engine control computer detects a misfire If the detected ionic current is extremely weak it is amplified by the igniter Engine Control Computer Battery C Ignition Coil Assembly No 1 lon Current Detection Circuit Crankshaft Position Sensor 1 Signal Camshaft Position Sensor 2 Signal lt 1 Cylinder Knock Control Sensor Throttle Position Sensor No 2 Cylinder Ignition Coil Assembly No 2 Intake Pressure Sensor d Coolant Temperature Sensor jx No 3C Ignition Coil Assembly No 3 ylinder Starter Signal m sf No 4 Cylinder Neutral Starter Switch Olgnition Coil Assembly No 4 135529 Detection Condition 1 Diagnosis Conditio
29. b Turn the ignition switch to the ON position and read the DTCs by following the prompts on the DS II screen HINT If P1600 83 is detected this indicates that the engine computer is malfunctioning Replace the engine control computer REPLACE ENGINE CONTROL COMPUTER 5 106 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE KEYLESS IMMOBILISER SYSTEM DTC P1601 81 COMMUNICATION SYSTEM CODE DOES NOT MATCH COMMUNICATION ERROR DESCRIPTION The transponder key computer assembly immobiliser ECU ensures security by controlling the START END of the communication of matching codes with the engine control computer It does so in accordance with the ignition ON OFF status and the immobiliser SET UNSET status DTC Detection Condition 1 Diagnosis Condition DTC No 2 Malfunction Condition Suspected Area 3 Malfunction Time 4 Other 1 IG ON 2 Communication problem with transponder TRANSPONDER KEY COMPUTER key computer assembly immobiliser ASSEMBLY IMMOBILISER ECU P1601 81 ECU or code mismatch Engine control computer 3 1 second or more Wire harness or connector 4 1trip CIRCUIT DIAGRAM Engine Control Computer Smart ECU A133872J02 INSPECTION PROCEDURE 1 READ DTCs a Connect the DS II to the DLC b Turn the ignition switch to the ON position and read the DTCs by following the prompts on the 5 screen ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ME
30. e Vacuum sensor Wire harness and connector Engine control computer P0105 31 BOUE ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 29 CIRCUIT DIAGRAM Engine Control Computer Vacuum Sensor 1 FANAAeA 2 52 3 NW 27 E2PM A133545J02 INSPECTION PROCEDURE HINT Read the freeze frame data using the 05 Freeze data records aspects of the engine s condition when malfunctions occur This information is helpful when troubleshooting READ DS II DATA AIR INTAKE PRESSURE a Connect the DS II to the DLC b Read the air intake pressure shown on the 5 while the ignition switch is turned to the ON position and the engine is stopped Result Vehicle Condition Standard Engine is stopped ignition switch is ON 80 to 110 kPa Engine is warmed up and idling air conditioner is OFF 20 to 40 kPa Engine is running at a constant speed of 2000 r min air conditioner is OFF 19 to 39 kPa CHECK FOR INTERMITTENT PROBLEMS RM 5 30 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE 27 CHECK WIRE HARNESS AND CONNECTOR ENGINE CONTROL COMPUTER VACUUM SENSOR a Disconnect the vacuum sensor connector and the engine control computer connector B Using a tester check whether there is continuity or a short between the engine control computer and the vacuum sensor For terminal b Engine Control Computer layout
31. 10 14 VTH lt gt E2 i 53 19 Input Throttle valve is fully closed 0 4 0 8 VTH lt gt E2 i 53 19 Input Throttle valve is fully opened 3 2 5 0 ISC lt E1 Output Engine is idling Pulse is generated 65 lt gt 125 Air conditioner switch is OFF ON Waveform 7 DATES BEI Output After engine idles for more than 5 seconds 0 1 15 lt gt 125 5 18 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE Terminal Name Input Standard Terminal No Output V Output Engine is stopped ignition switch is ON 10 14 ur Input Stop light switch is ON 10 14 Minn Input Stop light switch is OFF 0 0 5 pb Output Engine is stopped ignition switch is ON 10 14 pde Output Engine is warmed up accelerator pedal is depressed prs 2 Output Engine is stopped ignition switch is ON 10 14 lt gt E1 Output Engine is idling Below 1 2 35 lt gt 125 Output Engine is idling Rc dne 2 Output Magnetic clutch is OFF 10 14 ee Output Magnetic clutch is ON Below 1 Output Engine is stopped ignition switch is ON jac a Input Me did 10 14 i 1222 Input E 0 9 1 R Input Engine is stopped ignition switch is ON 10 14 Input Engine is stopped ignition switch is ON 10 14 SONO Input Engine is stopped ignition switch is ON 4 5 5 5 gom Input Sensor adjusted to stable ambient temperatur
32. 125 E1 10 to 14V 1 CHECK AND ENGINE CONTROL A133549J09 COMPUTER 2 CHECK WIRE HARNESS OR CONNECTOR ECU GROUND a Disconnect the negative battery terminal Engine Control silica ES b Disconnect connector B of the engine control computer c Measure the voltage between the engine control computer and the ge 6 EE body ground using the tester For terminal layout see page ES 16 t L n uf Y 7 Standard Tester Connection Terminal Symbol Standard 125 E1 lt Body ground Continuity NG gt gt REPAIR OR REPLACE WIRE HARNESS OR A133911J01 CONNECTOR CHECK ENGINE CONTROL COMPUTER CHECK VOLTAGE SST 09842 97209 a Connect the SST sub harness EFI computer check to the engine control computer b Turn the ignition switch to the ON position c Measure the voltage between the terminals of the engine control Engine Control Computer computer connector using a tester For terminal layout see page ES 16 Standard Tester Connection Terminal Symbol Standard 120 IGSW lt gt 125 E1 9 to 14 V A133549J10 5 122 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE B 00000 00000 Fuse A133912J01 INSPE
33. Condition Suspected Area 3 Malfunction Time 4 Other 1 IG ON 2 CANH CANL open or transmission Wire harness or connector U0101 82 control computer malfunction Transmission control computer 1 second 1 trip IG ON CANH CANL open 1 second 1 trip IG ON HCAN LCAN open 1 second 1 trip IG ON CANH CANL open or transmission U1000 85 control computer malfunction Wire harness or connector 1 second 1 trip IG ON CANH CANL open or short 1 second 1 trip U0121 86 Wire harness or connector U0156 87 Wire harness or connector nom epe o NE ig U1002 88 Wire harness or connector TOI ede ES 113 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE CIRCUIT DIAGRAM Combination Meter CANH CANL CANH CANL CAN J C CANH CANLI CANH CANL Engine Control Computer Actuator Assembly CANH CANL Transmission Control Computer A138315J01 INSPECTION PROCEDURE 1 READ orcs a Record the output DTCs HINT When CAN communication DTCs and related sensor DTCs are detected at the same time troubleshoot the sensor DTCs after CAN communication has returned to its normal status ES 114 GO TO TROUBLESHOOTING FOR CAN COMMUNICATION SYSTEM ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 115 FUEL PUMP CONTROL SYSTEM DESCRIPTION While the engine cranks current flows from the ST termina
34. Cylinder 2 22 830 There is continuity and no short between other terminals and body ground 4 Cylinder 2 21 840 REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR CHECK AND REPLACE ENGINE CONTROL COMPUTER ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 63 DTC P0325 18 KNOCK SENSOR SIGNAL SYSTEM DESCRIPTION The knock control sensor is mounted to the cylinder block to detect engine knocking Inside the knock control sensor there is a sensing element When the sensing element is deformed due to the cylinder block vibration caused by knocking it generates electricity When the engine computer senses this voltage it retards the ignition timing to control the knocking DTC Detection Condition 1 Diagnosis Condition DTC No 2 Malfunction Condition Suspected Area 3 Malfunction Time 4 Other 1 IG ON Wire harness or connector 2 Openor short in knock control sensor circuit Knock control sensor P0325 52 3 0 9 seconds more Installation tightness of knock control sensor 4 1trip Engine control computer CIRCUIT DIAGRAM Engine Control Computer Knock Control Sensor a Saed Eine 2 121 KNK A133581J01 INSPECTION PROCEDURE HINT Read the freeze frame data using the DS Il Freeze frame data records aspects of the engine s condition when malfunctions occur This information is helpful when troubleshooting 5 64 ENGINE CONTROL EFI SYSTE
35. REPLACE WIRE HARNESS OR 00000 0000000 CONNECTOR A133871J01 CHECK AND REPAIR POWER SOURCE SYSTEM ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 103 DTC P1560 61 SHORT TO BACK UP POWER SOURCE DESCRIPTION Even when the ignition switch is turned off battery power is supplied to the BAT terminal of the engine control computer This power is used for recording DTC or data when malfunctions occur DTC Detection Condition 1 Diagnosis Condition DTC No 2 Malfunction Condition Suspected Area 3 Malfunction Time 4 Other 1 Ignition is in ON position battery voltage exceeds 10 V Engine control computer P1560 61 2 Open to back up power source circuit Wire harness or connector 3 EFI fuse 4 3trip CIRCUIT DIAGRAM Engine Control Computer MAIN EFI 38 125 Battery ET i 4 A133908J01 INSPECTION PROCEDURE EN CHECK ENGINE CONTROL COMPUTER SST 09842 97209 a Connect the SST sub harness EFI computer check to the engine control computer 5 104 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE Engine Control Computer E1 BAT A133549J08 ES NEN b Measure the voltage between the engine control computer terminals using a tester For terminal layout see page ES 16 Standard Tester Connection
36. SYSTEM 3SZ VE K3 VE a CHECK OUTPUT WAVEFORM 1 Connect the DS Il between the terminals of the engine control computer and set the DS II to the oscilloscope function Tester Connection 161 IG2 IG3 IG4 E1 Tool setting 5 VIDIV 10 ms DIV Measurement Condition Engine is warmed up and idling HINT As the engine speed increases the waveform cycle 134282 becomes shorter The oscilloscope waveform shown as an example does not include noise or chattering waveforms gt REPLACE ENGINE CONTROL COMPUTER CHECK WIRE HARNESS AND CONNECTOR ENGINE CONTROL COMPUTER IGNITION COIL a Disconnect engine control computer connectors and B and the ignition coil assembly connector b Using a tester check whether there is continuity or a short between the engine control computer vehicle side connector and the ignition coil assembly vehicle side connector For terminal layout See page ES 16 Standard Engine Control Computer Tester Connection Terminal Symbol Engine Control Computer lt gt Standard Ignition Coil Assembly There is continuity and no short 63 IG1 lt 3 IG1 between the other terminals and body ground IG1 ICMB1 There is continuity and no short 51 ICMB1 lt 2 ION between the other terminals and body ground Ignition Coil Assembly Vehicle Side Connector REPAIR OR REPLACE WIRE HARNESS OR CON
37. Sensor Oxygen sensor Standard Measurement Condition 5 to 10 20 C Oxygen sensor No 2 2 1 HT2A 5 to 10 20 Check short in sensor heater 1 133577 02 HT1A 4 E2 Standard Using the tester check for the short between terminals 1 Tester Connection Terminal Symbol 1 HT1A lt 4 E2 Sensor Oxygen sensor Standard No continuity Oxygen sensor No 2 1 HT2A lt 4 E2 No continuity No gt gt REPLACE OXYGEN SENSOR 5 48 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE 2 CHECK WIRE HARNESS AND CONNECTOR SENSOR HEATER POWER SOURCE CIRCUIT Oxygen Sensor Vehicle Side Connector B A133578J01 a Disconnect the oxygen sensor connector b Turn the ignition switch to the ON position c Using a tester measure the voltage of the terminals of the oxygen sensor vehicle side connecter Standard Installed position Tester Connection Standard Terminal Symbol Front rear 2 body ground 10 to 14 V gt gt GO TO STEP 4 3 CHECK WIRE HARNESS AND CONNECTOR ENGINE CONTROL COMPUTER OXYGEN SENSOR Engine Control Computer MER 02 Sensor Vehicle Side Connector HT1A 2 A133576J03 a Disconnect the engine control computer connector B a
38. Sensor ground Vehicle Side Connector There is continuity and no short between other terminals 19 E2 2 REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR A133550J01 CHECK AND REPLACE ENGINE CONTROL COMPUTER ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 35 P0115 42 COOLANT TEMPERATURE SENSOR SIGNAL SYSTEM DESCRIPTION The resistance of the thermistor built into the coolant temperature sensor varies according to the coolant temperature DTC Detection Condition 1 Diagnosis Condition DTC No 2 Malfunction Condition Suspected Area 3 Malfunction Time 4 Other 1 IGON 2 Open or short in coolant temperature circuit Wire harass r connector P0115 22 dis P Coolant temperature 3 0 5 seconds or more Engine control computer 4 1trip CIRCUIT DIAGRAM Engine Control Computer Coolant Temperature Y G100102J25 INSPECTION PROCEDURE HINT Read the freeze frame data using the DS Il Freeze frame data records aspects of the engine s condition when malfunctions occur This information is helpful when troubleshooting READ 05 DATA COOLANT TEMPERATURE a Connect the 05 11 to the DLC b Read the engine coolant temperature displayed on the DS II while the ignition switch is turned to the ON position and the engine is stopped Result Tester Display Proceed to
39. c Read the engine coolant temperature displayed on the DS II Standard 40 C REPLACE COOLANT TEMPERATURE SENSOR ES 37 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE CHECK WIRE HARNESS AND CONNECTOR ENGINE CONTROL COMPUTER COOLANT TEMPERATURE a Disconnect connector B of the engine control computer and the connector of the coolant temperature sensor b Using a tester check whether there is continuity or a short between Engine Control Computer P 9 B the vehicle side connector or the engine control computer the ED qf i vehicle side connector of the coolant temperature sensor For ERR EE EH B terminal layout see page ES 16 Md Standard Tester Connection Terminal Symbol Engine control computer Standard Coolant temperature There is continuity and no short 54 THW lt 2 between other terminals and body ground Coolant Temperature Vehicle Side Connector There is continuity and no short between other terminals 19 E2 1 REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR A133552J01 CHECK AND REPLACE ENGINE CONTROL COMPUTER 5 38 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE DTC P0120 41 THROTTLE SENSOR SIGNAL SYSTEM DESCRIPTION The throttle position sensor is mounted on the throttle body to detect the opening angle of the throttle valve When
40. crank angle sensor plate No 1 and the pickup coil The crank angle sensor is installed on the crankshaft It has 30 teeth with 6 missing teeth to allow top dead center to be detected The NE signal sensor outputs 30 signals per engine revolution The engine control computer detects the cylinder number and the relative position of the camshaft and angle based on the N2 signal It detects crankshaft angle and engine speed based on the 1 signal DTC Detection Condition 1 Diagnosis Condition DTC No 2 Malfunction Condition Suspected Area 3 Malfunction Time 4 Other 1 Cranking Wire harness or connector P0335 13 2 N1 signal is not input Crank position sensor 3 2seconds or more Crank angle sensor plate No 1 4 1trip Engine control computer CIRCUIT DIAGRAM Engine Control Computer Crankshaft Position Sensor A133583J02 INSPECTION PROCEDURE HINT Read the freeze frame data using the DS Il Freeze frame data records aspects of the engine s condition when malfunctions occur This information is helpful when troubleshooting Ifthe problem is not detected after first troubleshooting DTC P0335 13 this may indicate a mechanical system problem 5 67 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE EN CHECK ENGINE CONTROL COMPUTER Engine Control Computer 1 TI N1 A133549J06 A134283 CHECK CRANK POS
41. delete the DTCs by following the prompts on the DS II screen c Perform a road test d Check for DTCs following the prompts on the DS II screen 1 Check if DTC P1349 73 is output Result 5 96 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE A B Indicates P1349 73 Does not indicate P1349 73 CHECK FOR INTERMITTENT PROBLEMS EN CHECK VALVE TIMING Standard See the illustration gt ADJUST VALVE TIMING A138143J01 EE CHECK CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY a Check the resistance 1 Using a tester measure the resistance between the terminals Standard 6 9 to 7 9 20 C ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 97 D CHECK OPERATION 1 Apply battery voltage across the terminals then check that the spool valve operates NOTICE Make sure the spool valve is not stuck HINT If the spool valve does not return due to foreign matter like sludge the pressure may leak slightly toward the advanced side This leakage may cause DTCs to be recorded REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY A133914 E CHECK CAMSHAFT TIMING GEAR ASSEMBLY a Make sure that the camshaft timing gear assembly is not damaged gt REPLACE CAMSHAFT TIMING GEAR ASSEMBLY 5 CHECK OIL CONTROL VALVE FILTER a Check that the oil control valve filter is not blocked J Standard There is
42. no ON O2 sensor position 02512 Existence of bank 1 sensor 2 is indicated ON yes OFF no ON O2 sensor position O2813 Existence of bank 1 sensor 3 is indicated ON yes OFF no O2 sensor position 02514 Existence of bank 1 sensor 4 is indicated ON yes OFF no O2 sensor position 02521 Existence of bank 2 sensor 1 is indicated ON yes OFF no O2 sensor position 02522 Existence of bank 2 sensor 2 is indicated ON yes OFF no ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 23 Item Shorted Item O2 sensor position 02523 Item Description Existence of bank 2 sensor 3 is indicated ON yes OFF no Inspection Condition Reference Value Problem Area O2 sensor position 02524 Existence of bank 2 sensor 4 is indicated ON yes OFF no OBD requirements OBD requirements are EOBD OBD indicated EOBD Engine load amount is Engine is iding Git Calculated load value indicated 8 9 Air cleaner condition conditioner is OFF shift 0 596 M LOAD Displayed range 0 to 2 Throttle valve condition lever is in N position 10096 Engine load amount is Engine speed is 2000 r Calculated load value indicated min air conditioning is 5 7 Air cleaner condition LOAD Displayed range 0 to OFF shift lever is in N 6 Throttle valve condition 10096 position Indicates engine coolant Coolant
43. no blockage or foreign matter gt REPLACE OIL CONTROL VALVE FILTER S Mesh Portion A A079997 6 a Connect the DS II to the DLC b Turn the ignition switch to the ON position and delete the DTCs by following the prompts on the DS II screen c Perform a road test 5 98 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE d Check for DTCs following the prompts on the DS II screen 1 Check if DTC P1349 73 is output Result A B Indicates P1349 73 Does not indicate P1349 73 CHECK FOR INTERMITTENT PROBLEMS CHECK AND REPLACE ENGINE CONTROL COMPUTER ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 99 DTC P1351 62 TIMING CHAIN CONTROL SYSTEM DESCRIPTION The VVT system controls the open close timing of the air intake valve to achieve the appropriate timing in accordance with vehicle operating conditions The engine control computer controls the camshaft and the camshaft timing oil control valve in order to properly adjust the open close timing of the air intake valve and changes the relative position between the camshaft and crankshaft by operating the camshaft timing gear assembly DTC Detection Condition 1 Diagnosis Condition DTC No 2 Malfunction Condition Suspected Area 3 Malfunction Time 4 Other 1 While engine is running Mechanical system malfunction timing P4351 62 2 Valve timing deviation chain jumped a tooth or chain stretched 3 5 secon
44. s condition when malfunctions occur This information is helpful when troubleshooting The inspection method for the No 1 cylinder circuit is shown below If the DTC P0350 16 is still shown after the test check the circuit of each cylinder CHECK WIRE HARNESS AND CONNECTOR POWER SOURCE CIRCUIT CHECK a Disconnect the ignition coil assembly connector b Turn the ignition switch to the ON position c Using a tester check the voltage between terminals in the ignition coil Ignition Coil Assembly Connector assembly vehicle side connector Standard Tester Connection Terminal Symbol Standard 1 B lt 4 GND 9to 14 V gt CHECK POWER SOURCE CIRCUIT GND B A109396J05 5 74 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE CHECK WIRE HARNESS AND CONNECTOR ENGINE CONTROL COMPUTER IGNITION COIL ASSEMBLY a Disconnect the engine control computer connector A and ignition coil assembly connector b Using a tester check whether there is continuity or a short between Engine Control Computer N the engine control computer vehicle side connector and the ignition coil assembly vehicle side connector For terminal layout see page E uo b ao SESS Y ES 16 ED VERE EH Standard P ai ai Tester Connection Terminal Symbol Engine Control Computer lt gt
45. temperature temperature Engine warmed up 80 to 102 C THW Voltage ECT Displayed range 40 to completely 9 140 C Indicates engine coolant Coolant temperature temperature NOR Short t 119 to 140 C THW Volt ECT Displayed range 40 to E eee 140 C Indicates engine coolant Coolant temperature temperature AN Short t 40 C THW volt ECT Displayed range 40 to 135493 140 C Air intake pressure MAP Air intake pressure is indicated as absolute pressure Displayed range 0 to 120 kPa Ignition switch is in ON position engine is stopped 70 to 104 kPa VCPM voltage PIM voltage Air intake pressure Air intake pressure is indicated as absolute Engine is warmed up and VCPM voltage pressure idling air conditioner is 20 to 40 kPa Displayed range 0 to OFF FIM 120 kPa P MIN Indicates the engine speed SONIS 0 r min N voltage Engine spoeg Indicates the engine speed Constant engine speed No significant N voltage R MIN gne SM 98 fluctuation 9 Vehicle speed Vu VS Indicates vehicle speed The vehicle is stopped 0 km h SPD voltage Vehicle speed Y Vehicle is running at No significant Indicat hicl d SPD volt VS Oe ee constant speed fluctuation vonage REESE Indicates ignition timing nix Ignition timing advance of the 1 cylinder Engine is cranking air IG voltage angle conditioner is OFF shift 4 8 ITA Displayed range B
46. the engine is completely warm If changes are difficult to see perform a road test Ne gt REPLACE OXYGEN SENSOR 2 REPLACE ENGINE CONTROL COMPUTER ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 53 DTC P0171 25 FUEL SYSTEM LEAN MALFUNCTION DTC P0172 26 FUEL SYSTEM RICH MALFUNCTION DESCRIPTION There are two types of air fuel ratio corrections One is the normal operating air fuel ratio correction air fuel ratio F B The other is the memory air fuel ratio correction air fuel ratio F B learned Air fuel ratio F B is the air fuel ratio correction that is used to maintain a stoichiometric ratio The oxygen sensors send signals to the engine control computer indicating whether the current air fuel ratio is rich or lean comparing to the stoichiometric ratio When the signal indicates that the condition is rich the injection volume is decreased When the signal indicates that the condition is lean the injection volume is increased Air fuel ratio F B learned value refers to a value that shows the air fuel ratio F B value over a long period of time Because of differences specific to each engine such as differences caused by wear over time and changes in the operating environment this air fuel ratio F B learned value varies from a central value If either the air fuel ratio F B value or the air fuel ratio F B learned value exceeds a certain value and becomes lean or rich the engine control computer illuminates the check warni
47. the throttle valve is fully closed voltage of approximately 0 7 V is applied to the VTH terminal of the engine control computer The voltage that is applied to the VTH terminal of the engine control computer increases in proportion to the opening angle of the throttle valve and the voltage increases from approximately 3 5 V to 5 0 V when the throttle valve is fully opened The engine control computer determines the operating condition of the vehicle by the voltage input from the VTH terminal and adjusts the air fuel ratio performs fuel cut control etc Engine Throttle Control Position Computer Sensor d 133572 DTC Detection Condition 1 Diagnosis Condition DTC No 2 Malfunction Condition Trouble Area 3 Malfunction Time 4 Other 1 IG ON 2 Open or short circuit in throttle position Throttle position sensor P0120 41 sensor circuit Wire harness or connector 3 0 5 seconds or more Engine control computer 4 1trip ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE 5 39 CIRCUIT DIAGRAM Throttle Position Sensor Engine Control Computer 1 i 56 3 53 P d VTH 2 19 2 A133553J01 INSPECTION PROCEDURE HINT Read the freeze frame data using the DS Il Freeze frame data records aspects of the engine s condition when malfunctions occur This information is helpful when troubleshooting READ DS Il DATA ABSOLUTE THROTTLE OPENING ANGLE a Con
48. up to 3 data points including the DTC inspection point 1 point for before inspection and 1 point after inspection FREEZE DATA CHART Item Shorted Item Coolant temperature ECT Air intake pressure MAP Engine speed r min ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 11 Item Shorted Item Vehicle speed VS Ignition timing advance angle ITA Injection volume TAUX Injection timing TAUZ ES 12 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE CIRCUIT DIAGRAM General Export gn io Starter 2 TOO AIT ECU ST Relay Ignition Switch Swain 5 EFI 15 5 ER 10A Sst 7 5 120 QIGSW stswo 107 Battery 38 59 7 39 1 Crankshaft Q MRO N1 128 Position Sensor EFI Rela 58 N2 Camshaft N2 127 Position Sensor 27 4 KNK 121 F P Relay esce 35 7096 To Fuel Pump 123 ist 1 So 1 OxH1 o 125 Injector No 1 18 2 H 1 2 Sensor 2 InectorNo 2 1 2 23 56 1 vc sa Throttle Position 4 Injector No 3 VTH 2 3 sensor 22 54 Injector No 4 THWO 2 Coolant Temperature 2 55 1 i 2 THA Inlet Air Temperature 2 1 16 Sensor EVAP Purge VSV OPRG 19 2 20 2 4 8b E01 Indicator E1 4 15 OISC E1125 4 Engine Control Computer
49. 24 125 Output Engine is idling Waveform 1 IG3 lt E1 Pulse is generated 681 125 Output Engine is idling Waveform 1 IG4 lt E1 MR Pulse is generated 802125 Output Engine is idling Waveform 1 N1 lt N1 Enaine is idlin Pulse is generated 59 128 P 9 9 Waveform 2 N2 lt N2 Input Enaine is idlin Pulse is generated 58 127 P 9 9 Waveform 3 10 lt E1 Pulse is generated 24125 Output Engine is idling Waveform 4 20 lt E1 ES Pulse is generated 23 3125 Output Engine is idling Waveform 4 30 lt E1 Pulse is generated 22125 Output Engine is idling Waveform 4 40 lt E1 NR Pulse is generated 21 125 Output Engine is idling Waveform 4 OX1 lt gt E2 Pulse is generated 12349 Input O2 sensor is warmed up constant engine speed of 3000 r min Waveform 5 OX2 lt gt E2 Pulse is generated 18 19 Input O2 sensor is warmed up constant engine speed of 3000 r min Waveform 5 lt E2 input Enaine is idlin Pulse is generated 121 419 P 9 9 Waveform 6 THW lt E2 d 54 19 Input Coolant temperature 60 to 120 C 0 3 1 3 THA lt E2 m 55 19 Input Engine is warmed up 0 5 4 3 W lt E1 Engine is idling 13 125 Output the check engine light is off 1014 W lt E1 Disconnect the connector of the coolant temperature sensor 0 35 13 gt 125 the check engine light is on STSW lt E1 ARES 107 125 Input Starter switch is ON
50. CT FUSE E G a Remove the E G fuse and check for continuity using a tester Standard Continuity gt CHECK ALL WIRE HARNESSES AND DEVICES CONNECTED TO IGN FUSE 5 INSPECT FUSE AM2 Engine Room R B AM 2 Fuse A134899J01 a Remove the AM2 fuse and check for continuity using a tester Standard Continuity gt CHECK ALL WIRE HARNESSES AND DEVICES CONNECTED TO AM2 FUSE ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 123 6 INSPECTION IGNITION STARTER SWITCH ASSEMBLY a Check for continuity 1 Using the tester check the continuity between each of the connecter terminals Standard Switch Terminal No Standard LOCK No continuity ACC Terminal 1 lt gt Terminal Continuity Terminal 1 lt terminal 2 lt gt ON terminal 3 terminal 5 lt terminal Continuity 6 START Terminal 1 an terminal 2 terminal Continuity 4 lt terminal 5 lt terminal 6 gt REPLACE IGNITION STARTER SWITCH ASSEMBLY B059612 REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR SST 09842 97209 Connect the SST sub harness EFI computer check to the engine control computer
51. EL INJECTOR ASSEMBLY FUEL PUMP AUTOMATIC CONTROL e D COMPUTER NO ENGINE CONTROL COMPUTER OXYGEN SENSOR NO 2 COOLANT TEMPERATURE KNOCK CONTROL SENSOR IGNITION COIL ASSEMBLY OXYGEN SENSOR CRANKSHAFT POSITION SENSOR CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY A135187J02 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE DIAGNOSTIC TROUBLE CODE CHART ES 3 DTC No Diagnostic Item Lamp Code Memory See Page P0105 31 Pu intake pressure sensor 5 28 signal system 0110 43 Intake temperature ES 31 sensor signal system P0115 42 Coolant temperature ES 35 sensor signal system 0120 41 Throttle sensor signal ES 38 system P0130 21 Front O2 sensor signal ES 43 system P0135 23 Front O2 sensor heater ES 47 signal system P0136 22 Rear C2 sensor signal ES 50 system 0141 24 Rear O2 sensor heater 5 47 P0171 25 Fuel system ES 53 malfunction P0172 26 Fuel system rien ES 53 malfunction 0300 17 Misfire 5 58 0301 17 Misfire 1 cylinder 5 58 0302 17 Misfire 2 cylinder 5 58 0303 17 Misfire 3 cylinder 5 58 0304 17 Misfire 4 cylinder 5 58 0325 18 Knock sensor signal ES 63 system P0335 13 Engine revolution sensor 5 66 signal system P0340 14 Cam angle sensor signal
52. ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 1 EFI SYSTEM 3SZ VE K3 VE BASIC INSPECTION HINT If the malfunction cannot be determined by troubleshooting the problem area can be narrowed down by performing the following basic inspection 1 CHECK BATTERY VOLTAGE a Check the condition of the battery See page CH 3 2 CHECK WHETHER ENGINE CRANKS a Make sure that the engine cranks HINT If the engine does not crank check the starting systems 3 CHECK WHETHER ENGINE STARTS a Make sure that the engine starts HINT If the engine does not start check fuel pressure and spark 4 CHECK AIR FILTER Check the air filter HINT If the air filter is dirty clean or replace it CHECK ENGINE IDLE SPEED See page EM 2 CHECK IGNITION TIMING See page EM 1 CHECK FUEL PRESSURE See page FU 3 CHECK FOR SPARK See page IG 1 5 6 T 8 9 CHECK COMPRESSION See page EM 2 5 2 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE LOCATION ENGINE ROOM R B INSTRUMENT PANEL J B ST RELAY EFI FUSE FAN RELAY EFI RELAY F P RELAY THROTTLE BODY ASSEMBLY THROTTLE POSITION SENSOR ISCV EVAP PURGE VSV 2 AIR TEMPERATURE SENSOR N FU
53. HARNESS OR CONNECTOR CHECK ECU POWER SOURCE SYSTEM SEE ECU POWER SOURCE SYSTEM 5 50 DTC See Page ES 43 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE P0136 22 REAR 02 SENSOR SIGNAL SYSTEM DESCRIPTION DTC Detection Condition 1 Diagnosis Condition DTC No 2 Malfunction Condition Suspected Area 3 Malfunction Time 4 Other 1 During feedback after engine is warmed up 2 Open in oxygen sensor circuit or no rich signals are input Wire harness or connector P0136 27 during feedback Oxygen sensor No 2 3 500 seconds or more Engine control computer 4 2trip HINT Using the DS Il check the RrO2 sensor output voltage on the data monitor screen If the RrO2 sensor output voltage stays at 0 1 V or less there be an open in the RrO2 sensor voltage circuit The conditions of the oxygen sensor No 2 output voltage and the air fuel ratio feedback F B calibration value can be read by using 09 11 DESCRIPTION 1 Startthe engine and drive the vehicle for more than 20 seconds at speed above 10 km h 1 gm NOTICE Allow the engine to idle for approximately 400 seconds 2 Warm up the engine 3 Check the voltage of the RrO2 sensor output Drive the vehicle for 50 seconds or more at a vehicle speed of 70 km h or more 4 If this test is not performed accurately it will be impossible to determine exactly where problems are occurring HINT Because ox
54. INT For inspection procedures see page FU 3 gt REPAIR OR REPLACE FUEL SYSTEM 6 CHECK FOR EXHAUST GAS LEAKS gt REPAIR OR REPLACE EXHAUST GAS LEAKAGE AREA ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 77 READ DS Il DATA RrO2 SENSOR OUTPUT VOLTAGE a Connect the DS II to the DLC b Following the prompts on the 095 11 screen select ECU DATA MONITOR then RrO2 SENSOR OUTPUT VOLTAGE Then select MODE CHANGE and LINE GRAPH c Warm up oxygen sensor No 2 for approximately 90 seconds at an engine speed of 2500 r min d Read the voltage of the RrO2 sensor output while racing the engine at a speed of 4000 r min several times Result Voltage output is 0 4 V or less and 0 5 V or more CHECK WIRE HARNESS AND CONNECTOR ENGINE CONTROL COMPUTER SENSOR NO 2 a Disconnect the engine control computer connector B and the connector of oxygen sensor No 2 b Using a tester check whether there is continuity or a short between the engine control computer and oxygen sensor No 2 For terminal layout see page ES 16 Standard Tester Connection Terminal Symbol Engine Control Computer lt Oxygen Standard Sensor There is continuity and no short 18 OX2 lt 3 OX2 between the other terminals and body ground There is continuity and no short 19 E2 4 E2 between the other terminals and Oxygen Sensor NO 2 body ground Vehicle Side Connector
55. ITION SENSOR Crankshaft Position Sensor A133584J01 HINT The function of the engine control computer crank position sensor can be checked using the oscilloscope function of the DS II a Connect the 05 11 to terminals 59 N1 and 128 1 of the engine control computer connectors For terminal layout see page ES 16 Set the DS II to the oscilloscope function b Item Condition 1 lt 2 VIDIV 20 ms DIV While engine is idling Tester connection Tool setting Measurement condition HINT Asengine speed increases the amplitudes become larger Asengine speed increases the cycles become shorter DTCs may be recorded due to noise CHECK AND REPLACE ENGINE CONTROL COMPUTER Check the resistance 1 Using a tester measure the resistance between the connector terminals Standard 1630 to 2740 when cold 2065 to 32250 when warm NOTICE The terms cold and warm refer to the temperature of the parts inspected Cold is designated as a temperature between 10 and 50 Warm is designated as a temperature between 50 to 100 C Ne gt REPLACE CRANK POSITION SENSOR 5 68 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ER CHECK WIRE HARNESS AND CONNECTOR ENGINE CONTROL COMPUTER CRANK POSITION SENSOR a Disconnect the engine control computer connector and the crank position sensor connector b Using a tester check whe
56. Igniter system IG 1 5 Spark plug IG 18 6 Crank position sensor system IG 14 1 Throttle body system ES 129 Fast idle problem 2 Spark plug IG 18 1 Throttle body system ES 129 Idle speed is too high 2 See flowchart ECU power source ES 120 3 Neutral start switch system AT 57 1 Throttle body system ES 129 2 Neutral start switch system AT 57 Idle speed is too low 3 See flowchart fuel pump control system ES 115 4 Injector FU 12 1 Throttle body system ES 129 2 Injector FU 12 3 Igniter system IG 1 Idle is unstable 4 Compression EM 2 5 See flowchart fuel pump control system ES 115 6 Spark plug IG 18 1 Throttle body system ES 129 2 See flowchart ECU power source ES 120 Hunting 3 See flowchart fuel pump control system ES 115 4 Spark plug IG 17 1 See flowchart fuel pump control system ES 115 2 Injector FU 12 Stumbling poor acceleration 3 Igniter system IG 1 4 Spark plug IG 17 1 Igniter system IG 1 After fire 2 Injector FU 12 1 See flowchart fuel pump control system ES 115 Surging 2 Spark plug IG 17 3 Injector FU 12 1 See flowchart fuel pump control system ES 115 2 Throttle body system ES 129 Engine stall right after starting engine 3 Crank position sensor system IG 14 4 Igniter system IG 1 1 Injector FU 12 2 Throttle body system ES 129 Engine stall right after slowing down 3 Engine control computer ES 16 4 Crank p
57. M 3SZ VE K3 VE EN INSPECT ENGINE CONTROL COMPUTER Engine Control Computer E2 KNK A133549J05 A134287 HINT The communication between the engine control computer and the knock control sensors can be checked using the oscilloscope function of the DS Il a Connect the 05 11 to terminals 121 KNK and 19 E2 of the engine control computer connectors For terminal layout see page ES 16 b Set the DS II to the oscilloscope function See the 5 instruction manual for the setting procedures Item Condition Tester Connection KNK lt E2 Tool setting 1 V DIV 1 ms DIV Engine is warmed up and an engine speed of M t diti PPSA SANT 4000 r min is maintained HINT The oscilloscope waveform shown as an example does not include noise or chattering waveforms The waveform amplitudes differ slightly depending on the vehicle CHECK AND REPLACE ENGINE CONTROL COMPUTER INSPECT SENSOR INSTALLATION PART a Check the condition of the knock control sensor installation Nc gt gt REPAIR REPLACE SENSOR INSTALLATION PART CHECK WIRE HARNESS AND CONNECTOR ENGINE CONTROL COMPUTER KNOCK CONTROL SENSOR a Disconnect the engine control computer connector and the knock control sensor connector ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 65 b Using a tester check whether there is continuity or a s
58. NECTOR ION IG1 A135525 CHECK WIRE HARNESS AND CONNECTOR POWER SOURCE CIRCUIT CHECK a Disconnect the ignition coil assembly connector b Turn the ignition switch to the ON position ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 93 c Using a tester check the voltage between the terminals in the ignition Ignition Coil Assembly Connector coil assembly vehicle side connector Standard Tester Connection Terminal Symbol Standard 1 B lt 4 GND 9 to 14 V gt REPAIR OR REPLACE POWER SOURCE SYSTEM A109396J05 CHECK ENGINE CONTROL COMPUTER HINT The communication between the engine control computer and the ignition coil assembly can be checked using the oscilloscope function of the DS II a CHECK OUTPUT WAVEFORM 1 Connect the DS Il between the terminals of the engine control computer and set the DS II to the oscilloscope function CH1 161 IG2 IG3 IG4 lt E1 Tester Connection CH2 ICMB1 ICMB2 ICMB3 ICMB4 Tool setting 2 VIDIV 20 ms DIV Engine is warmed up and idling coolant Measurement Condition temperature is 80 C or higher air conditioner is ON A140669 HINT The output waveform CH2 of the ionic current combustion control signal generated between the output waveform of the ignition signal is the ionic current combustion control signal of cylinder 4 when
59. Standard DTC P1601 81 is not output ES 107 CHECK FOR INTERMITTENT PROBLEMS 2 CHECK WIRE HARNESS AND CONNECTOR a Disconnect the engine control computer connector C and the Engine Control Computer SIO2 Connector C Transponder Key Computer Assembly Vehicle Side Connector SIO2 i nin LLIIIIIIIT EEEE EB B143232J01 immobiliser ECU connector b Using a tester check whether there is continuity or a short between the engine control computer vehicle side connector and the immobiliser ECU vehicle side connector For terminal layout see page ES 16 Standard Inspection Terminal Terminal Name Engine Control Computer Smart ECU 117 5102 lt 8 5102 Standard There is continuity and no shorts between other terminals and body ground REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR 3 RE REGISTRATION ENGINE CONTROL COMPUTER IMMOBILISER ECU a a Connect the 05 11 to the DLC b Delete the DTCs using the DS II c Register the matching codes for the engine control computer and immobiliser ECU d Turn the ignition switch to the ON position and read the DTCs by following the prompts on the DS II screen Standard DTC P1601 81 is not output SYSTEM RETURNS TO NORMAL REPLACE ENGINE CONTROL COMPUTER a Replac
60. TDC lever is in N position Each sensor voltage 63 5 to ATDC 64 B n Indicates ignition timing RCRUM Ignition timing advance of the No 1 cylinder Engine is idling air IG voltage angle conditioner is OFF shift 0 15 ITA Displayed range BTDC lever is in N position Each sensor voltage 63 5 to ATDC 64 i TNR Indicates ignition timing Ignition timing advance Engine speed is 2000 r f the No 1 cylind IG volt angle 2 Cid min air conditioner is OFF 20 40 HM ITA Displayed range BTDC Each sensor voltage 63 5 to ATDC 64 shift lever is in N position 5 24 Shorted Item ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE Item Description Intake air temperature Indicates air Inspection Condition Reference Value Problem Area temperature Equivalent to ambient IAT Displayed range 40 to IG ON temperature THW voltage 140 C Indicates intake air Intake air temperature temperature JONG 7 Displayed range 40 to Short circuit in sensor 119 to 140 C THW voltage 140 C Indicates intake air Intake air temperature temperature S Short t 409 THW volt Displayed range 40 to ort circuit in sensor voltage 140 C Indicat i Opening angle of absolute Accelerator pedal fully VC VTH voltage of throttle valve 1 B throttle sensor Displayed range 0 to depressed 10 24 Throttle position sensor TP 100
61. TER REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 43 DTC P0130 21 FRONT 02 SENSOR SIGNAL SYSTEM DESCRIPTION A three way catalytic converter is used to efficiently remove CO HC and from the exhaust gas The three way catalytic converter works most efficiently when the air fuel ratio is close to the stoichiometric ratio Therefore if the engine does not operate close to the stoichiometric air fuel ratio CO HC and cannot be converted efficiently An oxygen sensor is provided in order help the system maintain the stoichiometric ratio The oxygen sensor is used to detect the oxygen concentration of the exhaust gas The oxygen sensor has a characteristic where its voltage output changes suddenly near the stoichiometric air fuel ratio if normal combustion is occurring The engine control computer uses this signal characteristic to allow air fuel ratio control When the air fuel ratio is lean the oxygen level in the exhaust gas increases The engine control computer recognizes the lean air fuel ratio detected by the oxygen sensor Low voltage variation 0 45 V When the air fuel ratio is rich oxygen levels in the exhaust gas decrease and the engine control computer recognizes the rich air fuel ratio detected by the oxygen sensor High voltage variation gt 0 45 V The engine control computer determines whether the air fuel ratio is rich or lean by the electromotive force signal of t
62. UEL INJECTOR ASSEMBLY a b SST 09843 97201 O9268 41047 Check the resistance 1 Using the tester measure the resistance between the injector terminals Standard 12 20 If the value is not within the standard range replace with known good parts CHECK INJECTION VOLUME NOTICE Work in a location with good air ventilation and watch out for fire 1 Connect the SST injection measuring tool set to the fuel pipe vehicle side ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE 5 61 Be extremely careful when handling the fuel tube connector 2 Attach the injector to a graduated cylinder HINT To prevent fuel from spraying install the correct sized vinyl tube etc 3 Connect the DS II to the DLC and operate the fuel pump Connect the injector to the SST EFI inspection wire Connect the SST EFI inspection wire to the battery perform fuel injection 15 seconds each 2 or 3 times and calculate the average value 2 I Standard ESS Difference Between Individual Injection Volume Injectors 60 to 73 ml 13ml or less HINT If the value is not within the standard range replace with known good parts c Check for leakage 1 When removing the SST from the battery under the conditions described above check that there is no leakage from the injector Standard 1 drop or less per 12 minutes gt REPLACE FUEL INJECTOR ASSEMBLY
63. URE HINT If any codes are detected other than misfire malfunction perform troubleshooting for those DTCs first Read the freeze frame data using the DS Il Freeze frame data records aspects of the engine s condition when malfunctions occur This information is helpful when troubleshooting To confirm that the repair has been completed operate the vehicle using one of the driving patterns shown below Driving patterns Engine speed Time Idle 3 and a half minutes or more 1000 r min 3 minutes or more 2000 r min 1 and a half minutes or more 3000 r min 1 minute or more EN INSPECT THE IGNITION SYSTEM See page IG 1 gt REPAIR OR REPLACE IGNITION SYSTEM 5 60 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE EX CHECK FUEL PRESSURE See page FU 3 gt REPAIR OR REPLACE FUEL SYSTEM ER CHECK COOLANT TEMPERATURE Resistance 2 be kQ 1 0 5 0 3 0 2 0 1L T T L 1 i 1 1 1 20 0 20 40 60 80 100 Temperature A050330 Check the resistance 1 Using the tester inspect the resistance between the terminals Standard At approx 20 2 32 to 2 59 At approx 80 0 310 to 0 326 NOTICE Protect the terminal area from getting wet when checking the sensor by applying water Also wipe the sensor dry after the check REPLACE COOLANT TEMPERATURE SENSOR 4 INSPECT F
64. VANCE ANGLE AND RETARD ANGLE FAIL DESCRIPTION The VVT system controls the open close timing of the air intake valve to achieve the appropriate timing in accordance with vehicle operating conditions The engine control computer controls the camshaft and camshaft oil control valve assembly in order to properly adjust the crankshaft by operatin open close timing of the air intake valve and changes the relative position between the camshaft and g the camshaft timing gear assembly DTC No 1 P1349 59 2 3 4 DTC Detection Condition 1 Diagnosis Condition 2 Malfunction Condition Suspected Area 3 Malfunction Time 4 Other Engine speed of 500 to 4000 r min and coolant e VALVE TIMING temperature between 80 to 110 C CAMSHAFT TIMING OIL CONTROL VALVE Cannot achieve valve timing within 5 of target or valve ASSEMBLY timing is fixed does not vary e CAMSHAFT TIMING GEAR ASSEMBLY 5 seconds or more VVT SYSTEM OIL PATH 2trip Engine control computer CIRCUIT DIAGRAM Valve Assembly Camshaft Timing Oil Control Engine Control Computer G100100J14 INSPECTION PROCEDURE HINT Read the freeze frame data using the 05 11 Freeze frame data records aspects of the engine s condition when malfunctions occur This information is helpful when troubleshooting 1 READ DTCs a Connect the 05 11 to the DLC b Turn the ignition switch to the ON position and
65. Vehicle Side Connector A133576J02 a b Warm up the oxygen sensor for approx 90 seconds at an engine speed of 2500 r min Using the DS II read the output voltage of the oxygen sensor while the engine is idling Standard Repeated output of voltage that is less than 0 3 V or more than 0 6 V a b c Disconnect connector B of the engine control computer Disconnect the connector of the oxygen sensor Using a tester check whether there is continuity or a short between the engine control computer and the oxygen sensor connector For terminal layout see page ES 16 Standard Tester Connection Terminal Symbol Engine Control Computer lt Oxygen Standard Sensor There is continuity and no short 123 OX1 3 OX1 between other terminals and body ground REPLACE OXYGEN SENSOR REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR ROAD TEST TO CHECK OPERATION a b c Connect the DS II to the DLC Turn the ignition switch to the ON position and delete the DTCs by following the prompts on the DS II screen To check the system warm up the oxygen sensor by performing a road test HINT Refer to the oxygen sensor output voltage inspection procedure ES 57 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE 10 DTCs a Connect the 05 11 to the DLC b Turn the ignition switch to the ON position and read the DTC by following the prompts
66. WIRE HARNESS AND CONNECTOR ENGINE CONTROL COMPUTER OXYGEN SENSOR aii Control Computer b C ao su In maj KS Oxygen Sensor Vehicle Side Connector E2 A133576J04 REPLACE OXYGEN SENSOR sensor connector b layout see page ES 16 Standard Disconnect the engine control computer connector B and the oxygen Using a tester check whether there is continuity or a short between the engine control computer and the oxygen sensor For terminal Tester Connection Terminal Symbol Engine control computer Oxygen sensor 123 OX1 lt 3 0X1 Standard There is continuity and no short between other terminals and body ground 19 E2 4 E2 There is continuity and no short between other terminals REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 46 E ROAD TEST TO CHECK OPERATION 4 READ pTcs a Connect the 05 11 to the DLC b Turn the ignition switch to the ON position and delete the DTCs by following the prompts on the DS II screen c To check the system warm up the oxygen sensor by performing a road test HINT Refer to DESCRIPTION for the procedure a Connect the 05 11 to the DLC b Turn the ignition switch to the ON position and read the DTCs by following the prompts on the 5 scr
67. Z VE K3 VE CHECK WIRE HARNESS AND CONNECTOR ENGINE CONTROL COMPUTER OXYGEN SENSOR NO 2 Engine Control Computer OX2 Rear O2 Sensor Vehicle Side Connector A133580J01 a Disconnect the engine control computer connector B and the oxygen sensor No 2 connector b Using a tester check whether there is continuity or a short between the engine control computer and oxygen sensor No 2 For terminal layout see page ES 16 Standard Tester Connection Terminal Symbol Engine Control Computer Standard Oxygen Sensor No 2 There is continuity and no short 18 02X2 1 between other terminals and body ground There is continuity and no short 19 E2 OE between other terminals REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR READ DS II DATA RrO2 SENSOR OUTPUT VOLTAGE a Connect the DS II to the DLC b Following the prompts on the 05 11 screen select ECU DATA MONITOR then RrO2 SENSOR OUTPUT VOLTAGE Then select MODE CHANGE and LINE GRAPH c Warm up oxygen sensor No 2 for approximately 90 seconds at an engine speed of 2500 r min d Read the voltage of the RrO2 sensor output while racing the engine at a speed of 4000 r min several times Result Voltage output is 0 4 V or less and 0 5 V or more HINT Oxygen sensor No 2 does not have a heater control so perform the tests after
68. cylinder 1 is inspected When cylinder 2 is inspected cylinder 3 The oscilloscope waveform shown as an example does not include noise or chattering waveforms gt REPLACE IGNITION COIL TO FUEL SYSTEM 5 94 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE DTC 01346 75 CONTROL SYSTEM VALVE TIMING FAIL DESCRIPTION The VVT system controls the open close timing of the air intake valve to achieve the appropriate timing in accordance with vehicle operating conditions The engine control computer controls the camshaft and camshaft oil control valves in order to properly adjust the open close timing of the air intake valve and changes the relative position between the camshaft and crankshaft by operating the camshaft timing gear assembly DTC Detection Condition 1 Diagnosis Condition DTC No 2 Malfunction Condition Suspected Area 3 Malfunction Time 4 Other While ngng d Mechanical system malfunction timing chain jumped Valve timing deviation cannot achieve targeted valve 1346 18 timing a tooth or chain stretched 5 seconds or more VALVE TIMING 4 2trip ENGINE CONTROL COMPUTER INSPECTION PROCEDURE EE CHECK VALVE TIMING Standard See the illustration gt ADJUST VALVE TIMING A138143J01 CHECK AND REPLACE ENGINE CONTROL COMPUTER ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 95 P1349 73 VVT CONTROL AD
69. d of 30 to 70 MA dM km h Intake system i Fuel system 0301 17 Rate of misfires is higher than the set Wire hamess DEcotiior value Coolant temperature 60 seconds or more Engine control computer 2 trip n Fuel injector Igniti t When driving at vehicle speed of 30 to 70 RUP ae Intake system Fuel system 0302 17 Rate of misfires is higher than the set Wire harness Or connector value Coolant temperature 60 seconds or more Engine control computer 2 trip AM Fuel injector When driving at vehicle speed of 30 to 70 system Intake system Enn Fuel system 0303 17 Rate of misfires is higher than the set Wire lt value Coolant temperature 60 seconds or more Engine control computer 2 trip 2 Fuel injector When driving at vehicle speed of 30 to 70 lgnitionsystem Intake system kmi Fuel system P0304 17 Rate of misfires is higher than the set Wire value Coolant temperature 60 seconds or more Engine control computer 2 trip Fuel injector ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE 5 59 CIRCUIT DIAGRAM Ignition Coil Assembly Engine Control Computer No 1 Cylinder Injector No 1 To E G Fuse Ignition Coil Assembly No 2 Cylinder Ignition Coil Assembly 3 Cylinder Ignition Coil Assembly No 4 Cylinder To EFI Relay A135528 INSPECTION PROCED
70. ds or more VALVE TIMING 4 5trip Engine control computer INSPECTION PROCEDURE 1 CHECK VALVE TIMING Standard See the illustration Ne gt ADJUST VALVE TIMING A138143J01 REPLACE CHAIN 5 100 DESCRIPTION The starter operation signal is transmitted to the STSW terminal of the engine control computer while the engine cranks The ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE DTC P1510 54 STARTER SIGNAL SYSTEM starter operating signal is used primarily for increasing fuel injection volume when the engine starts DTC No P1510 54 DTC Detection Condition 1 Diagnosis Condition 2 Malfunction Condition 3 Malfunction Time 4 Other After engine start There are no ON signals even when engine speed reaches a set value at a vehicle speed of 0 km h 1 trip i Suspected Area Wire harness or connector Engine control computer 2 trip for EU specifications ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE CIRCUIT DIAGRAM ES 101 Ignition Switch Ao MAI OGO Engine Control Computer x gt E Starter Relay 10 Transmission Control Computer Starter A133870J02 INSPECTION PROCEDURE HINT This diagnosis procedure assumes that the engine is not malfunctioning and can be cranked with the starter If the engine cannot be cranked determine the suspected area using a
71. e 3 1 4 1 pono Input Air conditioning is ON 0 15 4 8 a eS ground Ground Always continuity check Continuity pd ground Ground Always continuity check Continuity EM s ground Ground Always continuity check Continuity E ground Ground Always continuity check Continuity FAN2 terminal for European models ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE A134282 A134283 A134284 A134285 ES 19 1 Oscilloscope waveform a Waveform 1 Tester Connection 161 162 IG3 IG4 E1 Tool setting 5 VIDIV 10 ms DIV Measurement Engine is idling after warming u condition g 9 g up HINT As the engine speed increases the waveform cycle becomes shorter The oscilloscope waveform shown as an example does not include noise or chattering waveforms b Waveform 2 Tester Connection 1 N1 Tool setting 2 VIDIV 20 ms DIV Measurement DANS Engine is idling HINT As the engine speed increases the waveform cycle becomes shorter As the engine speed increases each waveform cycle becomes shorter Noise may cause DTCs to be recorded c Waveform 3 Tester Connection N2 lt gt N2 Tool setting 2 VIDIV 20 ms DIV gt os die ie idiin condition 9 9 As the engine speed increases the waveform cycle becomes shorter As the engine s
72. e air gap on the top of the pickup coil changes This causes the magnetic field to change generating electromotive force in the pickup coil DTC Detection Condition 1 Diagnosis Condition DTC No 2 Malfunction Condition Suspected Area 3 Malfunction Time 4 Other 1 When cranking Wire harness or connector P0340 14 2 Noinput of a certain number of cam position sensor position sensor 3 Camshaft 4 1trip Engine control computer CIRCUIT DIAGRAM Engine Control Computer Camshaft Position A133586J02 5 70 INSPECTION PROCEDURE HINT ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE Read the freeze frame data using the DS Il Freeze frame data records aspects of the engine s condition when malfunctions occur This information is helpful when troubleshooting If the problem is not detected after first troubleshooting DTC P0340 14 this may indicate a mechanical system problem EN CHECK ENGINE CONTROL COMPUTER Engine Control Computer A133549J07 A134284 CHECK CAM POSITION SENSOR Camshaft Position Sensor A105341J11 HINT The function of the engine control computer cam position sensors can be checked using the oscilloscope function of the DS II a Connect the DS II to terminals 58 N2 and 127 N2 of the engine control computer connectors For terminal
73. e check engine warning light comes on at engine speed of approximately1000 r min or more and no DTC is output turn the ignition switch to the OFF position and recheck Disconnect diagnosis check wire No 2 4 CHECK FREEZE DATA using 05 a Using the 05 11 follow the prompts on the screen and select the DTC that records the freeze data marked from the DTC FREEZE DATA screen HINT The engine condition ECU data before and after DTCs are detected can be checked using the time series freeze frame data See page ES 10 The time series freeze frame data is helpful troubleshooting when the symptom cannot be reproduced 5 10 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE Engine Room R B 2 EFI Fuse A133909J01 Time Sequence Of Data Recording Timing DTC Detection Point Sequence of Data Recording Point Recorded At 0 5 Second Intervals A138074J01 5 6 DELETE RECORDED DTCs using DS Il a Following the prompts on the screen select the DTC FREEZE DATA screen and delete the DTCs NOTICE If the DTCs cannot be deleted turn the ignition switch off then perform the procedure again Until the cause of problems are clarified do not delete the DTCs using the DS II Write the DTCs down before dele
74. e with a new or a known good engine control computer ES 108 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE b After replacing the engine control computer register the keys turn the ignition switch to the ON position then read the DTCs Standard DTC P1601 81 is not output SYSTEM RETURNS TO NORMAL REPLACE TRANSPONDER KEY COMPUTER ASSEMBLY ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 109 DTC P1656 74 OCV CONTROL SYSTEM DESCRIPTION See ES 95 DTC Detection Condition 1 Diagnosis Condition DTC No 2 Malfunction Condition Trouble Area 3 Malfunction Time 4 1 IG ON 2 Short or open to camshaft timing oil control valve Wire harness or connector P1656 39 assembly and circuit Camshaft timing oil control valve assembly 3 1 second or more control computer 4 1trip CIRCUIT DIAGRAM See ES 95 INSPECTION PROCEDURE HINT Read the freeze frame data using the DS Il Freeze frame data records aspects of the engine s condition when malfunctions occur This information is helpful when troubleshooting EN CHECK CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY a Check the resistance 1 Using a tester measure the resistance between the terminals Standard 6 9 to 7 9 20 C b Check operation 1 Apply battery voltage across the terminals then check that the spool valve operates NOTICE Make sure the spool valve is not stuck HINT If the spool valve does not return due to f
75. een 1 Check if DTC P0130 21 is indicated Tester Display Indicates P0130 21 Proceed to Indicates a normal code CHECK FOR INTERMITTENT PROBLEMS CHECK AND REPLACE ENGINE CONTROL COMPUTER ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 47 DTC P0135 23 FRONT 02 SENSOR HEATER SIGNAL SYSTEM DTC P0141 24 REAR 02 SENSOR HEATER DESCRIPTION See ES 43 DTC Detection Condition 1 Diagnosis Condition DTC No 2 Malfunction Condition Suspected Area 3 Malfunction Time 4 Other 1 IGON 2 Open oxygen sensor heater circuit 0135 23 Oxygen sensor 3 1 2 seconds or more Enoi 4 2 ngine con p To IGON Wire harness or connector 0141 24 2 Open oxygen sensor 2 heater circuit OXYGEN SENSOR NO 2 3 1 2 seconds or more 4 2trip Engine control computer CIRCUIT DIAGRAM HINT For the wiring diagram see page ES 44 INSPECTION PROCEDURE HINT Read the freeze frame data using the DS Il Freeze frame data records aspects of the engine s condition when malfunctions occur This information is helpful when troubleshooting INSPECT OXYGEN SENSOR Disconnect the oxygen sensor connector B E2 Front Rear O2 Sensor CHECK SENSOR HEATER RESISTANCE 1 b 1 HT1A HT2A Standard Using a tester measure the resistance between the terminals Tester Connection Terminal Symbol 2 B 1 HT1A
76. gative battery terminal b Disconnect connector C of the engine control computer c Measure the continuity between the engine control computer terminal and the body ground using the tester For terminal layout see page ES 16 Standard Tester Connection Terminal Symbol Standard 39 MRO lt Body ground Continuity MRO A133913J01 REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR
77. ge 0 75 to 9 1 25V Indicates whether the idle switch is ON or OFF if the vehicle does not have an Idle signal Accelerator pedal fully VC voltage dl tch the ON stat ON gt OFF IDL CEERI mas depressed released i VTH voltage 5 26 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE Item Shorted Item ISC learned value Item Description Indicates ISC learned value Inspection Condition Engine warmed up and Reference Value Problem Area ISC voltage idli i iti DLRN Displayed range 0 to Ming ir conditioner OFF Voltage of each sensor shift lever is in N position 10096 Indicates ISC learned ISC learned value value a ISC voltage idling air conditioner is ON 6 14 DLRN Displayed range 0 to XE ve Voltage of each sensor shift lever is in N position 10096 Purge trim ratio e Indicates purge trim ratio Engine is idling after 0 PRG voltage FPG Displayed range 0 to 0 5V warming up Voltage of each sensor y 9 9 9 Knocking trim advance Indicates knock sensor SECO Engine is idling after angle trim advance angle 0 3 voltage warming up AKNK Displayed range 0 to 20 Knocking trim advance Indicates knock sensor 4000 r min angle trim advance angle 0 3 voltage AKNK Displayed range 0 to 20 Indicates VVT
78. he SST sub harness EFI computer check to the engine control computer Turn the ignition switch to the ON position Using a tester measure the voltage between terminal 53 VTH and 19 E2 of the engine control computer connector For terminal layout see page ES 16 Standard Throttle Valve Standard Fully closed 0 3 to 1 0 V Fully open 2 7 to 5 2 V CHECK AND REPLACE ENGINE CONTROL COMPUTER ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE 5 41 CHECK WIRE HARNESS AND CONNECTOR ENGINE CONTROL COMPUTER THROTTLE POSITION SENSOR a Disconnect the engine control computer connector B and the throttle position sensor connector b Using a tester check whether there is continuity or a short between the engine control computer vehicle side connector and the throttle NG position sensor vehicle side connector For terminal layout see page ee th ES 16 Standard E 3 TT 94 Inspection Terminal Terminal Engine control computer Standard Throttle position sensor P Engine Control Computer There is continuity and no short 53 VTH 3 VTH between other terminals and body ground Throttle Position Sensor REPAIR OR REPLACE WIRE HARNESS OR Vehicle Side Connector CONNECTOR VTH A133574J01 CHECK AND REPLACE ENGINE CONTROL COMPUTER S SST 09842 97209
79. he oxygen sensor and controls injection volume The oxygen sensor has a heater which warms a zirconium element The heater is controlled by the engine control computer which applies current to the heater in order to prevent sensor inaccuracy that may occur if the sensor gets cold when the exhaust gas temperature is low such as when there is a low amount of intake air Atmosphere 1 Output Voltage Air Fuel Ratio Platinum Electrode Zirconia Element Platinum Electrode z 2 es Rich Lean W Cover gt gt Ceramic Coating Stoichiometric Air Fuel Ratio Exhaust Gas Heater A069512 DTC Detection Condition 1 Diagnosis Condition DTC No 2 Malfunction Condition Suspected Area 3 Malfunction Time 4 Other 1 Engine warmed up and engine speed lower than 2 500 r min 2 Steady oxygen sensor output voltage of less than 0 3 V or more Wire harness or connector P0130 21 than 0 6 V Oxygen sensor 3 400 seconds or more after engine started Engine control computer 4 2trip HINT Using the DS II check the FrO2 sensor output voltage on the data monitor screen If the FrO2 sensor output voltage stays at 0 02 V or less the O2 sensor voltage system circuit may be open DESCRIPTION Start the engine and drive the vehicle for more than 20 seconds at speed above 10 km h 1 Allow the engine to idle for approximately 400 seconds 2 Check the voltage of the FrO2 sensor out
80. he shift lever to the N or P position Turn off the air conditioner 2 CHECK DTCs using 05 11 b c 9 Connect 05 11 to the DLC Turn the ignition switch to the ON position Turn the DS Il power ON Following the prompts on the screen select CHECK DTCs FREEZE FRAME DATA on the DIAGNOSIS EFI screen and check for DTCs HINT If a DTC is displayed the DS II see IN 30 3 CHECK DTCs using the check engine warning light NOTICE 9 Turn the ignition switch to the ON position before reading the DTCs and check that the check engine warning light is flashing The CHECK MODE cannot be used Turn the ignition switch off Using the diagnosis check wire short terminals 12 EFIT and 4 E of the DLC SST 09843 18020 NOTICE Do not connect the diagnosis check wire to the wrong terminals Doing so may cause malfunctions Useonly the dedicated diagnosis check wire Turn the ignition switch to the ON position and count the number of flashes of the check engine warning light HINT Ifthe indicator light does not indicate a DTC the light does not blink there may be a malfunction in the TC terminal VC terminal or the computer f the check engine warning light remains on the wire harness may have a short circuit due to being pinched or for other reasons or the computer may be malfunctioning f an irrelevant DTC is detected the computer may be malfunctioning If th
81. hermistor built into intake air temperature sensor changes depending on the temperature of the intake air When the intake air temperature is low the resistance of the thermistor increases Conversely when the temperature of the intake air is high the resistance of the thermistor drops The intake air temperature sensor is connected to the engine control computer and through resistance R 5V power source voltage is supplied to the intake air temperature sensor from terminal THA of the engine control computer Because resistance R and the intake air temperature sensor are connected in series the resistance changes depending on the intake air temperature and the potential of terminal THA changes Based on this signal the engine control computer increases the fuel injection volume to improve drivability during cold engine operation Resistance kO 30r 20 10 TTTTTT 5 3 2 T 1 0 5 0 3 0 2 TT TTTTT T 0 1 L 3 LL LLI 1 1 20 0 20 40 60 80 100 Temperature A032255J11 DTC Detection Condition 1 Diagnosis Condition DTC No 2 Malfunction Condition Suspected Area 3 Malfunction Time 4 Other 1 IG Wire harness or connector 2 Open or short to intake air temperature sensor INTAKE AIR TEMPERATURE SENSOR P0110 24 circuit Engine control computer 3 0 5 seconds or more 4 1trip 5 32 ENGINE CONTROL CIRCUIT DIAGRAM EFI SYSTEM 3SZ VE K3 VE
82. hort between the engine control computer and the knock control sensor For Engine Control Computer a terminal layout see page ES 16 Gy cb Standard ES Hid EH 8 Tester Connection Terminal Symbol Ly 307 Engine Control Computer Standard 6 Knock Control Sensor There is continuity and no short 121 KNK lt 2 between other terminals and body ground KNK There is continuity and no short 19 E2 lt 1 between other terminals and body Knock Control Sensor ground Vehicle Side Connector REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR A133582J01 EH REPLACE KNOCK CONTROL SENSOR a Replace the knock control sensor See page ES 133 ES 134 b Connect the 05 11 to the DLC c Turn the ignition switch to the ON position and delete the DTC memory by following the prompts on the DS II screen d Perform a road test READ DTCs a Connect the DS II to the DLC b Turn the ignition switch to the ON position and read the DTCs by following the prompts the DS II screen 1 Check if DTC P0325 52 is detected Result A B Indicates P0325 52 Does not indicate P0325 52 CHECK AND REPLACE ENGINE CONTROL COMPUTER 5 66 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE P0335 13 ENGINE REVOLUTION SENSOR SIGNAL SYSTEM DESCRIPTION The crank position sensor system consists of the
83. inal layout see page ES 16 Standard There is continuity and no short between the other terminals and body ground REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE 5 81 DTC P0500 52 VEHICLE SPEED SIGNAL SYSTEM DESCRIPTION The vehicle speed signal is transmitted to the engine control computer via CAN communication DTC Detection Condition 1 Diagnosis Condition DTC No 2 Malfunction Condition Suspected Area 3 Malfunction Time 4 Other 1 While driving when slowing down and Combinati t during fuel cut bibo MEE Speed sensor P0500 52 2 Vehicle speed signal is not input Wire harness or connector 3 9 seconds r more Engine control computer 4 2 trip 9 P CIRCUIT DIAGRAM Engine Control Computer Combination Meter CANH 2 3 HCAN CANL 22 8 LCAN A134898J01 INSPECTION PROCEDURE READ DS Il DATA VEHICLE SPEED Make sure that the speedometer operates normally Connect the DS II to the DLC Read the vehicle speed displayed on the DS II Standard The DS Il and speedometer displays are identical CHECK FOR INTERMITTENT PROBLEMS o E ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE GO TO METER AND GAUGE SYSTEM m i N READ DTCs a Connect the DS II to the DLC b Turn the ignition switch to the ON position and read the DTCs by following the prompts on the 5 screen
84. ition Sensor There is continuity and no short 58 N2 lt 1 between other terminals and body N2 ground There is continuity and no short Camshaft Position Sensor 127 N2 2 between other terminals and body Vehicle Side Connector ground REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR A133587J01 Em INSPECT SENSOR INSTALLATION PART a Check the tightness and installation condition of the cam position sensor bolt gt gt REPAIR REPLACE SENSOR INSTALLATION PART 5 Inspect camshaft a Check the concave and protruding parts of the camshaft and check the installation condition gt REPAIR OR REPLACE CAMSHAFT 5 72 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE DTC DESCRIPTION P0350 16 IGNITION PRIMARY SYSTEM A direct ignition system has been adopted Along with increasing ignition accuracy the direct ignition system reduces high voltage loss and enhances the overall reliability of the ignition system The direct ignition system performs ignition using 1 ignition coil for each oylinder The engine control computer determines the ignition timing and transmits ignition signals IG to each cylinder Based on the IG signals the power transistor in the igniter cuts off the current in the primary coil This generates electromotive force in the secondary coil The electromotive force in the secondary coil ignites the spark plug Engine Control Computer
85. km h after the engine is completely warmed Exhaust system Ignition system up Fuel system P0420 27 2 The voltage of the rear O2 sensor signal Engine control computer is large and the response is rapid Wire harness or connector 3 40 seconds or more 4 2trip CIRCUIT DIAGRAM See Page ES 44 INSPECTION PROCEDURE INSPECT EMISSION CONTROL SYSTEM HINT For inspection procedures See page EC 1 REPAIR OR REPLACE EMISSION CONTROL SYSTEM 2 INSPECT FUEL INJECTOR ASSEMBLY See page ES 54 gt REPLACE FUEL INJECTOR ASSEMBLY 5 76 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE 30 CHECK COOLANT TEMPERATURE a Check the resistance 1 Using the tester inspect the resistance between the terminals Standard Measurement Condition Standard When approx 20 C 2 32 to 2 59 When approx 80 C 0 310 to 0 326 NOTICE Protect the terminal area from getting wet when checking 3n EF the sensor by applying water Also wipe the sensor dry 10 after the check 5 Resistance 2 1 0 5 0 3 0 2 0 1L REPLACE COOLANT TEMPERATURE SENSOR T T TTTTITT L b 1 1 1 20 0 20 40 60 80 100 Temperature C A050330 4 INSPECT THE SYSTEM HINT For inspection procedures see page IG 1 gt REPAIR OR REPLACE IGNITION SYSTEM 5 CHECK FUEL system H
86. l of the ignition switch to the starter relay coil and from the ST terminal to the STSW terminal STSW signal of the engine control computer When the STSW signal and N1 signal are input to the engine control computer current flows to the fuel pump relay coil via an internal transistor This turns the relay switch turns ON The fuel pump receives current and operates While N1 is input with the engine running the fuel pump continues to operate because the transistor switch inside the engine control computer remains ON F P relay ON CIRCUIT DIAGRAM Engine Control Computer F P Relay 1 Ignition Switch EFI Relay 2 1 9 2 33 From Starter Circuit 107 Q MAIN 59 From Crankshaft Sensor 124 I Battery FAN 2 For Europe A138423J01 ES 116 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE INSPECTION PROCEDURE PERFORM DS II ACTIVE TEST FUEL PUMP a Following the prompts on the DS II screen select the active test mode b Turn the ignition switch to the ON position and perform the active test with the engine stopped Standard Fuel pump operates gt GO TO STEP 7 2 CHECK POWER SUPPLY SYSTEM CHECK REPAIR OR REPLACE ECU POWER SOURCE SYSTEM CHECK FUEL PUMP RELAY a Check for continuity 1 Using a tester inspect the resistance between the terminals 5 4 Standard 8 Terminals Continuity
87. layout see page ES 16 b Setthe DS II to the oscilloscope function Item Condition Tester Connection N2 lt N2 Tool setting 2 VIDIV 20 ms DIV Measurement condition While engine is idling HINT As engine speed increases the amplitudes become larger As engine speed increases the cycles become shorter DTCs be recorded due to noise CHECK AND REPLACE ENGINE CONTROL COMPUTER a Check the resistance 1 Using a tester measure the resistance between the connector terminals Standard 835 to 1400 when cold 1060 to 1645 when warm NOTICE The terms cold and warm refer to the temperature of the parts inspected Cold is designated as a temperature between 10 and 50 C Warm is designated as a temperature between 50 to 100 C gt REPLACE CAM POSITION SENSOR ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 71 2 CHECK WIRE HARNESS AND CONNECTOR ENGINE CONTROL COMPUTER CAM POSITION SENSOR a Disconnect the engine control computer connector B and the cam position sensor connector b Using a tester check whether there is continuity or a short between Engine Control Computer the engine control computer and the cam position sensor For Z N terminal layout see page ES 16 Ld a ld Standard IER El 2 A NO 4 Tester Connection Terminal Symbol Engine Control Computer lt gt Crank Standard Pos
88. lue Problem Area Check engine warning light ON OFF is on off W voltage ES 22 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE Item Shorted Item Number of power train trouble codes DIAG Item Description DTCs Displayed range 0 to 255 Inspection Condition Reference Value Problem Area Indicates the number of Fuel system status of bank 1 FS1 Fuel system status of bank 1 is indicated OL open loop conditions are not satisfied to go from open loop to closed loop CL close loop oxygen sensor is used as feedback for fuel control OL Drive open loop due to drive condition OL Fault open loop due to detected system malfunction CL Fault close loop but at least one oxygen sensor is malfunctioning Only one oxygen sensor is used for fuel control Engine is idling after warming up CL OX1 Voltage Fuel system status of bank 2 FS2 Fuel system status of bank 2 is indicated OL open loop conditions are not satisfied to go from open loop to closed loop CL close loop oxygen sensor is used as feedback for fuel control OL Drive open loop due to drive condition OL Fault open loop due to detected system malfunction CL Fault close loop but at least one oxygen sensor is malfunctioning Only one oxygen sensor is used for fuel control O2 sensor position 02511 Existence of bank 1 sensor 1 is indicated ON yes OFF
89. ly closed from the open status lever is position ISC dutv ratio ee reuocare Engine warmed up and VC voltage 668 Disbla idling air conditioner is OFF 6 14 VTH voltage pay oe shift lever is in N position THW voltage 100 ISC duty ratio Pane ratio Engine warmed up and VC voltage 269 i Displa ib idling air conditioner is ON 20 60 VTH voltage pay ge shift lever is in N position THW voltage 100 Indicates actual displacement angle of Engine is idling after angle 9 9 9 0 59 voltage VT VVT warming up Displayed range 0 to 50 Indicates actual Actyaldisplacement displacement angle of Engine is warmed up and angle p 9 M P 0 10 OCV voltage VT VVT running at constant speed Displayed range 0 to 50 Target displacement i Ingicates target eC displacement angle of Engine is idling after angle 0 5 OCV voltage VTT VVT control warming up Displayed range 0 to 50 Target displacement i Indicates target 212104 displacement angle of Engine is warmed up and angle 0 10 OCV voltage VTT VVT control running at constant speed Displayed range 0 to 50 O2 sensor signal Indicates 2500 ratio measured by front Bensntendins speed OX voltage O2 sensor is lean or rich 9 P Indicates learned value of air fuel ratio NE compensation FM one PHA eti 0 75 to 1 25 V OX voltage Displayed ran
90. m the battery under the conditions described above check that there is no leakage from the injector Standard 1 drop or less per 12 minutes gt REPLACE FUEL INJECTOR ASSEMBLY ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 55 3 CHECK COOLANT TEMPERATURE 1 rt ee eee 0 1L 1 4 1 20 0 20 40 60 80100 Temperature 050330 CHECK FOR EXHAUST GAS LEAKS REPAIR OR REPLACE EXHAUST GAS a Check the resistance 1 Using the tester inspect the resistance between the terminals Standard Measurement Condition When approx 20 C Standard 2 32 to 2 59 kQ When approx 80 C 0 310 to 0 326 kQ NOTICE Protect the terminal area from getting wet when checking the sensor by applying water Also wipe the sensor dry after the check REPLACE COOLANT SENSOR HINT For inspection procedures see page IG 1 TEMPERATURE INSPECT THE IGNITION SYSTEM gt REPAIR OR REPLACE IGNITION SYSTEM HINT For inspection procedures see page FU 3 CHECK FUEL SYSTEM gt REPAIR OR REPLACE FUEL SYSTEM LEAKAGE AREA ES 56 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE READ DS Il DATA FrO2 SENSOR OUTPUT VOLTAGE KHLIIIILIIT MANN CHECK WIRE HARNESS AND CONNECTOR ENGINE CONTROL COMPUTER OXYGEN SENSOR Engine Control Computer OX1 Front O2 Sensor
91. n DTC No 2 Malfunction Condition Suspected Area 3 Malfunction Time 4 Other 1 Engine is warmed up and running IGNITION ASSEMBLY 2 ICMB signal is not input continuously Fuel system P1300 36 input Ignition system 3 Approx 30 seconds Wire harness or connector 4 2trip Engine control computer ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 91 CIRCUIT DIAGRAM Ignition Coil Assembly No 1 Cylinder Engine Control Computer To E G Fuse 4 2 11 Ignition Coil Assembly 2 Cylinder 1 3 10 4 2 10 Ignition Coil Assembly No 3 Cylinder 1 3 AQ 4 2 9 Ignition Coil Assembly Vo 4 Oylinder 1 3 8 4 2 B8 A135526 INSPECTION PROCEDURE HINT Read the freeze frame data using the DS Il Freeze frame data records aspects of the engine s condition when malfunctions occur This information is helpful when troubleshooting The inspection method for the No 1 cylinder circuit is shown below If the DTC P1300 36 is still shown after the test check the circuit of each cylinder ca INSPECT IGNITION SYSTEM See page IG 1 gt REPAIR OR REPLACE IGNITION SYSTEM CHECK ENGINE CONTROL COMPUTER IG SYSTEM HINT The communication between the engine control computer and the ignition coil assembly can be checked using the oscilloscope function of the DS II 5 92 ENGINE CONTROL EFI
92. nd the oxygen sensor connector b Using a tester check whether there is continuity or a short between the engine control computer and the oxygen sensor For terminal layout see page ES 16 Standard Tester Connection Terminal Symbol Engine control computer Standard Oxygen sensor There is continuity and no short 15 OXH1 1 HT1A between other terminals and body ground There is continuity and no short 14 OXH2 1 2 between other terminals and body ground REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR CHECK AND REPLACE ENGINE CONTROL COMPUTER 4 CHECK WIRE HARNESS AND CONNECTOR OXYGEN SENSOR EFI RELAY a Disconnect the oxygen sensor connector ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 49 Oxygen Sensor Vehicle Side Connector 000000 000000 A133579J01 b Remove the EFI relay c Using a tester check whether there is continuity or a short between the relay block holder for the EFI relay and the oxygen sensor Standard Tester Connection Terminal Symbol Installed position Relay block holder for Standard EFI relay Oxygen sensor There is continuity and hort bet th Front rear 3 2 nO STOM ia b terminals and body gt REPAIR OR REPLACE WIRE
93. ne Control Computer A133549J01 SST 09843 18020 Short the circuit between terminals 55 THA and 19 E2 of the engine control computer using the SST diagnosis check wire Read the intake air temperature displayed on the DS II Standard 140 C gt CHECK AND REPLACE ENGINE CONTROL COMPUTER REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR 4 READ DS Il DATA INSPECT WIRE HARNESS SHORT CIRCUIT o Disconnect the intake air temperature sensor connector Turn the ignition switch to the ON position Read the intake air temperature displayed on the DS II Standard 40 C REPLACE INTAKE AIR TEMPERATURE SENSOR 5 34 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE CHECK WIRE HARNESS AND CONNECTOR ENGINE CONTROL COMPUTER INTAKE TEMPERATURE SENSOR a Disconnect the engine control computer connector B and the intake Engine Control Computer air temperature sensor connector gt b Using a tester check whether there is continuity or a short between the engine control computer vehicle side connector and the intake air temperature sensor vehicle side connector For terminal layout see page ES 16 Standard Tester Connection Terminal Symbol Engine control computer lt gt Inlet Standard air temperature sensor There is continuity and no shorts 55 THA lt 1 between other terminals and body Inlet Air Temperature
94. nect the DS II to the DLC b Read the opening angle of the throttle valve Result Throttle Valve Standard Fully open 64 96 Fully Closed 10 24 CHECK FOR INTERMITTENT PROBLEMS 07052 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 40 2 CHECK WIRE HARNESS OR CONNECTOR CHECK VOLTAGE Throttle Position Sensor Vehicle Side Connector 2 A133554J01 a b TE Disconnect the connector of the throttle position sensor Turn the ignition switch to the ON position Using a tester measure the voltage between terminal 1 VC and 2 E2 of the vehicle side connector of the throttle position sensor Standard 4 5to 5 5 V gt GO TO STEP 6 EN INSPECT THROTTLE POSITION SENSOR Throttle Position Sensor A133573J01 a Disconnect the connector of the throttle position sensor b Using a tester measure the resistance between the connector terminals of the throttle position sensor Standard Boi Throttle Valve Resistance 1 VC to 3 VTH 2 5 to 5 9 k 3 VTH to 2 E2 Fully closed 0 2 to 5 7 k 3 VTH to 2 E2 Fully open 2 0 to 10 2 k gt REPLACE THROTTLE POSITION SENSOR INSPECT ENGINE CONTROL COMPUTER Engine Control Computer E2 VTH A133549J03 a b SST 09842 97209 Connect t
95. ng light DTC Detection Condition 1 Diagnosis Condition DTC No 2 Malfunction Condition Suspected Area 3 Malfunction Time 4 Other Intake system Fuel system Ignition system P0171 25 Wire harness or connector 1 While operating the vehicle at 70 km h with the engine warm during a normal air fuel ratio F B 2 Fuel trim is corrected heavily on the increase side approx 40 96 3 60 seconds or more 4 2trip Oxygen sensor Engine control computer Gas leakage from exhaust system Intak t 1 While operating the vehicle at 70 km h with the engine heii Fuel system warm during a normal air fuel ratio F B NOR z Ignition system 0172 26 2 Fuel trim is corrected heavily on the decrease side v Wire Ries reset 359 approx 35 Oxygen sensor 3 60 seconds or more Engine control computer 4 2trip Gas leakage from exhaust system HINT If the total of the air fuel F B value and the air fuel F B learned value is within 2596 the system is normal CIRCUIT DIAGRAM See Page ES 44 INSPECTION PROCEDURE HINT Check if the engine has stopped in the past because of a fuel cut If so the DTC P0171 25 be recorded Read the freeze frame data using the DS Il Freeze frame data records aspects of the engine s condition when malfunctions occur This information is helpful when troubleshooting EH INSPECT EMISSION CONTROL SYSTEM HINT Fo
96. ody ground Tester Connection Standard Fuel Pump lt gt Body Ground 4 Body ground Continuity NOTICE When applying the tester probe to the holder during inspection be careful not to damage the holder part by pressing it too hard REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR GO TO RELEVANT CIRCUIT INSPECTION SPECIFIED IN PROBLEM SYMPTOMS TABLE ES 120 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ECU POWER SOURCE SYSTEM DESCRIPTION When the ignition switch is ON current from the battery flows to the EFI relay coil causing the EFI relay connection to close Power is then supplied to the terminal of the engine control computer CIRCUIT DIAGRAM Engine Control Computer E G 120 Ignition Switch EFI Relay Qo MAIN Battery inni A138424 INSPECTION PROCEDURE EE CHECK ENGINE CONTROL COMPUTER CHECK VOLTAGE SST 09842 97209 a Connect the SST sub harness EFI computer check to the engine control computer ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 121 b Turn the ignition switch to the ON position c Measure the voltage between the terminals of the engine control Engine Control Computer computer connector using a tester For terminal layout see page ES 16 ae s fet Standard EJ BEST Tester Connection Terminal Symbol Standard 27 B lt gt
97. ol computer CIRCUIT DIAGRAM Engine Control Computer EVAP Purge VSV To EFI Relay A138379J01 5 80 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE INSPECTION PROCEDURE INSPECT EVAP PURGE VSV 8 Port Check the air flow 1 Check for air flow between the ports when voltage is applied to the connector terminals Standard Inspection Condition Air flow No current No air flow Current Air flow SL A A134303J01 b Check the resistance 1 Using the tester inspect the resistance between the terminals Standard 30 to 34 Q 20 C gt REPLACE EVAP PURGE VSV a b c CHECK WIRE HARNESS AND CONNECTOR POWER SOURCE VOLTAGE CHECK Disconnect the connector of the evap purge VSV connector Turn the ignition switch to the ON position Using a tester measure the voltage between evap purge VSV vehicle side connector terminal 2 and the body ground Standard 9 to 14V gt CHECK POWER SOURCE CIRCUIT CHECK WIRE HARNESS AND CONNECTOR ENGINE CONTROL COMPUTER EVAP PURGE VSV a b REPLACE ENGINE CONTROL COMPUTER Disconnect connector A of the engine control computer and the connector of the evap purge VSV Using a tester check whether there is continuity or a short between the engine control computer vehicle side connector terminal 16 PRG and evap purge VSV vehicle side connector terminal 1 For term
98. on the 05 11 screen 1 Checkif DTC P0171 25 is detected Result A P0171 25 is not output again B P0171 25 is output again CHECK AND REPLACE ENGINE CONTROL COMPUTER CHECK FOR INTERMITTENT PROBLEMS 5 58 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE P0301 17 MISFIRE 1 CYLINDER DTC P0302 17 MISFIRE 2 CYLINDER P0303 17 MISFIRE 3 CYLINDER P0304 17 MISFIRE 4 CYLINDER DESCRIPTION The igniter detects ionic current that is generated by combustion This ionic current is represented by ionic voltage and input to the engine control computer If the voltage is lower than the specified value the engine control computer determines that there has been a misfire and counts the number of detected misfires If the number of misfires reaches or exceeds a specified value the engine check warning light illuminates to indicate a problem If the number of misfires reaches or exceeds the point at which the catalyst may overheat the engine check warning light flashes DTC Detection Condition 1 Diagnosis Condition DTC No 2 Malfunction Condition Suspected Area 3 Malfunction Time 4 Other When driving at vehicle speed of 30 to 70 ignition system km h Intake system Fuel system P0300 17 FO304 17 are Wire harness or connector output repeatedly Coolant temperature 60 seconds or more Engine control computer 2 trip AE Fuel injector Igniti t When driving at vehicle spee
99. ontrol to open control Return to normal condition P0325 18 Lag the ignition timing Return to normal condition 0350 16 Stop the fuel injection to the cylinder that has Beum tenema condon ignition signal problems P0535 44 Turn off the air conditioner Return to normal condition P1600 83 1601 81 Stop fuel injection and ignition Return to normal condition P1656 74 Prohibit the oil control valve current control Return to normal condition 5 28 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE AIR INTAKE PRESSURE SENSOR SIGNAL SYSTEM P0105 31 DESCRIPTION Using built in sensor the vacuum sensor detects the intake manifold pressure as voltage At the same time the engine control computer determines the basic injection and ignition timing based on this voltage The vacuum sensor does not detect barometric pressure as a standard value but it detects the absolute pressure of the inside of the intake manifold so it is not effected by high latitude or other barometric pressure changes Therefore a constant standard air fuel ratio is maintained under all conditions Voltage V 3 96 3 6 Foo 24Tqe 1 2 mmHg 750 840 kPa 20 60 100 112 Intake Manifold Internal Pressure A051845J01 DTC Detection Condition 1 Diagnosis Condition DTC No 2 Malfunction Condition Suspected Area 3 Malfunction Time 4 Other IG ON Open or short to vacuum sensor circuit 0 5 seconds or more 1 trip
100. oreign matter like sludge the pressure may leak slightly toward the advanced side This leakage may cause DTCs to be recorded View of A REPLACE CAMSHAFT TIMING CONTROL VALVE ASSEMBLY 4 A A133914 CHECK WIRE HARNESS AND CONNECTOR ENGINE CONTROL COMPUTER CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY a Disconnect the engine control computer connector and the connector of the camshaft timing oil control valve assembly ES 110 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE Engine Control Computer 1 OOOO e Oil Control Valve Vehicle Side Connector ML N A103589J02 b Using a tester check whether there is continuity or a short between the engine control computer and the camshaft timing oil control valve assembly For terminal layout see page ES 16 Standard Tester Connection Terminal Symbol Engine Control Computer lt gt Camshaft Timing Oil Control Valve Assembly Standard There is continuity and no short between the other terminals and body ground 26 OCV lt 1 There is continuity and no short 25 OCV lt 2 between the other terminals and body ground 13 CHECK ENGINE CONTROL COMPUTER Engine Control Computer
101. osition sensor system IG 14 5 Igniter system IG 1 1 Neutral start switch system AT 57 2 Throttle body system ES 129 Engine stall when the shift lever is in the D position 3 Crank position sensor system IG 14 4 Igniter system IG 1 ES 6 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE HOW TO PROCEED WITH TROUBLESHOOTING VEHICLE BROUGHT TO WORKSHOP CONDUCT CUSTOMER PROBLEM ANALYSIS AND CHECK SYMPTOMS See page ES 7 CHECK CAN COMMUNICATION SYSTEM See page 4 t Using the 05 11 select CAN BUS DIAGNOSIS CHECK ECU CONNECTED TO CAN BUS LINE screen see CA 8 and make sure all ECU and sensors that are connected to the CAN communication are displayed on the screen GO TO CAN COMMUNICATION SECTION CHECK FOR DIAGNOSTIC TROUBLE CODES See page ES 8 a Check for DTCs and freeze frame data b Delete DTCs and freeze frame data c Recheck for DTCs 1 If DTCs are present go to A 2 If DTCs are not present go to B GO TO STEP 7 TROUBLESHOOT USING DTCS OR DIAGNOSTIC TROUBLE CODE CHART MAIN SUSPECTED AREAS a Ifthe location of the problem is determined go to b Ifthe location of the problem is not determined go to B GO TO STEP 12 GO TO STEP 9 PROBLEM SYMPTOMS TABLE See page ES 4 a Ifthe location of the problem is determined go to A b Ifthe location of the problem is not determined go to B ENGINE CONTROL
102. peed increases each waveform cycle becomes shorter Noise may cause DTCs to be recorded d Waveform 4 Tester Connection 10 20 30 40 lt E1 Tool setting 20 V DIV 20 ms DIV Measurement alu condition Engine is idling HINT As the engine speed increases the waveform cycle becomes shorter 5 20 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE A134286 e Waveform 5 A134287 Tester Connection OX1 OX2 E1 Tool setting 0 2 V DIV 500 ms DIV Measurement Oxygen sensor is warmed up constant engine speed of condition 3000 r min HINT Repeat between 0 LEAN lt 1 RICH V f Waveform 6 A134289 Tester Connection KNK lt E1 Tool setting 1 V DIV 1 ms DIV Measurement condition Engine is idling HINT oscilloscope waveform shown as an example does not include noise or chattering waveforms waveform amplitudes differ slightly depending on the vehicle 0 Waveform 7 Tester Connection ISC E1 Tool setting 5 VIDIV 1 ms DIV Measurement Engine is idling air conditioning is OFF ON condition HINT The duty ratio changes if the air conditioning is turned ON 5 21 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE A134292 CARB SPECIFIED DATA CHART h Waveform 8 Tester Connection PRG
103. problem symptoms table See page ES 4 INSPECT ENGINE CONTROL COMPUTER b SST 09842 97209 Connect the SST sub harness EFI computer check to the engine control computer Turn the ignition switch to the ON position ES 102 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE c Using a tester measure the voltage between terminals 107 STSW and 125 E1 of the engine control computer connector For terminal Engine Control Computer layout see page ES 16 Standard 10 to 14 V CHECK AND REPLACE ENGINE CONTROL COMPUTER A133549J16 2 CHECK WIRE HARNESS AND CONNECTOR ENGINE CONTROL COMPUTER STARTER RELAY a Disconnect the engine control computer connector D b Remove the starter relay c Using a tester check whether there is continuity or a short between Engine Control Computer the engine control computer and the starter relay block holder terminal For terminal layout see page ES 16 Standard Tester Connection Terminal Symbol Engine Control Computer Relay Block Holder For Installing Starter Standard Relay There is continuity and no short 107 STSW 3 between the other terminals and body ground NOTICE When applying the tester probe to the holder during inspection be careful not to damage the holder part by pressing it too hard REPAIR OR
104. put NOTICE If this test is not performed accurately it will be impossible to determine exactly where problems are occurring ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 44 HINT If there are any abnormalities the check warning light will remain on while the procedure is performed 2 Vehicle Speed More Than 20 Sec 1 10 km h F Idling More Than 400 Sec 2 IG OFF A140624J01 CIRCUIT DIAGRAM Engine Control Computer EFI Relay EFI OND Front O2 Sensor Q MAIN Rear O2 Sensor 2 T Battery L 56 60 A135516 Read the freeze frame data using the DS Il Freeze frame data records aspects of the engine s condition when malfunctions ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE INSPECTION PROCEDURE occur This information is helpful when troubleshooting ES READ DS Il DATA FrO2 SENSOR OUTPUT VOLTAGE E Connect the DS II to the DLC ES 45 Start the engine and warm it up until it reaches a temperature that allows the oxygen sensor to start feedback engine speed of 2500 r min idling Result Warm up the oxygen sensor for approximately 90 seconds at an Using the DS Il read FrO2 sensor voltage B1S1 while the engine is Repeated output of voltage that is less than 0 3 V or more than 0 6 V HINT e It is easier to see the changes in the line graph mode on the monitor Screen 2 CHECK
105. r inspection procedures see page EC 1 gt REPAIR OR EMISSION CONTROL SYSTEM ES 54 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE 2 INSPECT FUEL INJECTOR ASSEMBLY A139327 SST 09843 97201 O9268 41047 a Check the resistance 1 Using the tester measure the resistance between the injector terminals Resistance 12 20 HINT If the value is not within the standard range replace with a known good part b Fuel injection volume NOTICE Work in a location with good air ventilation and watch out for fire 1 annan oa were Connect the SST injection measuring tool set to the fuel pipe vehicle side NOTICE Be extremely careful when handling the fuel tube connector Attach the injector to a graduated cylinder HINT To prevent fuel from spraying install the correct sized vinyl tube etc Connect the DS II to the DLC and operate the fuel pump Connect the injector to the SST EFI inspection wire Connect the SST EFI inspection wire to the battery perform fuel injection 15 seconds each 2 or 3 times and calculate the average value SST 09842 30055 Standard Injection Volume Difference Between Individual Injectors 60 to 73ml 13 ml or less 000069 If the value is not within the standard range replace with known good parts c Check for leakage 1 When removing the SST fro
106. see page ES 16 Standard Inspection Terminal Terminal Name Engine control computer Intake Pressure Sensor Vacuum sensor 57 VCPM 3 VC 52 lt 2 Standard There is continuity and no shorts between other terminals and body ground 122 E2PM lt gt 1 E2 There is continuity and no short between other terminals Vehicle Side Connector REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR E PIM A133546J01 CHECK VACUUM SENSOR Turn the ignition switch to the ON position Measure the voltage between the terminals of the vacuum sensor connecter using the tester Intake Pressure Sensor Standard Inspection Terminal Terminal Name Standard 3 lt 1 E2 4 5to 5 5 V 2 lt 1 E2 3 1 to 4 1V c Remove the fuel pump relay and crank the engine then measure the voltage between the terminals of the vacuum sensor connector Standard E2 A133547J01 Standard Voltage value fluctuates Inspection Terminal Terminal Name 2 lt 1 E2 REPLACE THE VACUUM SENSOR CHECK AND REPLACE ENGINE ECU ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE 5 31 INTAKE AIR TEMPERATURE SENSOR SIGNAL SYSTEM P0110 43 DESCRIPTION The intake air temperature sensor detects the intake air temperature The resistance of the t
107. t Continuously for 0 5 seconds or more 1 trip Suspected Area Cooler thermistor No 1 evaporator rear sensor Wire harness or connector Engine control computer CIRCUIT DIAGRAM Cooler Thermistor NO 1 Post EVAP Sensor Engine Control Computer A134276J01 INSPECTION PROCEDURE 1 CHECK COOLER THERMISTOR 1 EVAPORATOR REAR SENSOR a Disconnect the connector of cooler thermistor No 1 evaporator rear sensor 5 88 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE A133916 b Using a tester check the resistance between terminals 1 and 2 of the connector of cooler thermistor No 1 evaporator rear sensor Standard Temperature Standard 0 C 4 6 to 5 1 KQ 15 C 2 1 to 2 6 NOTICE e If you touch the temperature sensor with your hand you body temperature will confuse the measurement Therefore make sure to hold the connector side when performing the measurements e Wait until the sensor adjusts to a stable ambient temperature before performing the inspection REPLACE COOLER THERMISTOR NO 1 EVAPORATOR REAR SENSOR INSPECT WIRE HARNESS AND CONNECTOR ENGINE CONTROL COMPUTER COOLER THERMISTOR NO 1 EVAPORATOR REAR SENSOR Engine Control Computer BERE ER Cooler Thermistor No 1 Vehicle Side Connector a
108. the engine s condition when malfunctions occur This information is helpful when troubleshooting 1 PERFORM DS II ACTIVE TEST ISC DUTY RATIO a Following the prompts on the DS II screen select ACTIVE TEST b Check that the engine speed changes when the ISC duty ratio is changed Standard The engine speed increases or decreases in response to changes in the ISC duty ratio CHECK FOR INTERMITTENT PROBLEMS ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 85 2 CHECK THROTTLE BODY IDLE SPEED CONTROL VALVE ASSEMBLY POWER SOURCE CIRCUIT a Disconnect the ISCV connector b Turn the ignition switch to the ON position ISCV Vehicle Side Connector c Using a tester measure the voltage of the ISCV vehicle side connecter terminals Standard Tester Connection Terminal Symbol Standard 2 B 3 RSC 9 to 14V CHECK WIRE HARNESS OR CONNECTOR ISC CIRCUIT a Disconnect the engine control computer connector A and ISCV connector b Using a tester check whether there is continuity or a short between 2 Engine Control Computer q the engine control computer and the ISCV For terminal layout see age ES 16 PE ea E jin paN hmr Standard E ERES E FH E Tester Connection Terminal Symbol Standard T Pt la Engine Control Computer lt ISCV There is continuity and no short 65 ISC
109. ther there is continuity or a short between the engine control computer and the crank position sensor For 2 Engine Control Computer 2 terminal layout see page ES 16 gt Standard zx Tester Connection Terminal Symbol Engine Control Computer lt gt Crank Standard Position Sensor There is continuity and no short 59 N1 1 between other terminals and body ground There is continuity and no short Crankshaft Position Sensor 128 N1 2 between other terminals and body Vehicle Side Connector ground REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR C A133585J01 INSPECT SENSOR INSTALLATION PART a Check the tightness and installation condition of the crank position sensor bolt gt REPAIR REPLACE SENSOR INSTALLATION PART CHECK CRANK ANGLE SENSOR PLATE NO 1 a Check the concave and protruding parts of crank angle sensor plate No 1 and check the installation condition gt REPAIR OR REPLACE CRANK ANGLE SENSOR PLATE NO 1 CHECK AND REPLACE ENGINE CONTROL COMPUTER ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE 5 69 DTC P0340 14 CAM ANGLE SENSOR SIGNAL SYSTEM DESCRIPTION The cam position sensor N2 signal consists of the pickup coil and the timing rotor that is mounted on the camshaft When the camshaft rotates the relative positions of the protruding part of the timing rotor and th
110. ting them DELETE DTCs by removing a fuse a The recorded codes can be deleted by removing the EFI fuse 15A for more than 60 seconds after turning the ignition switch to the OFF position NOTICE Be sure to clear the DTCs and check that a normal code is output after the EFI system inspection is finished Do not delete the DTCs by clearing the battery removing a fuse until the cause of the problems is clarified Write the DTCs down before deleting them Freeze Frame Data 1 2 3 CHECK FREEZE FRAME DATA a If the symptom can not be reproduced even though a DTC is detected check the freeze frame data Connect the DS II to the DLC Turn the ignition switch to the ON position Select DIAGNOSIS EFI DTC FREEZE DATA Detected DTCs will be displayed on the DTC screen Select the DTCs to check the desired freeze data HINT The DTCs are marked with the character and the highlighted codes contain freeze data CHECK TIME SERIES FREEZE FRAME DATA a Select the item to check the desired time series freeze data on the freeze data screen HINT The previous version of freeze data recorded ECU data only when DTCs occurred when detected but time series freeze frame data also records ECU data before and after DTCs are detected Time series freeze frame data can be checked when TIME SERIES FREEZE DATA CAN BE CHECKED is displayed on the freeze data screen The time series freeze frame data can display
111. voltage 73to 110 kPa BAT Displayed range 0 to 16 V IG ON 11 to 14 V BAT voltage ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE DMC SPECIFIED DATA CHART ES 25 Item Shorted Item Electrical load Item Description Indicates that there is Inspection Condition Light defogger Reference Value Problem Area DSW xisetricaload OFF gt ON OFF gt ON Voltage of each switch Air conditioner signal Indicates that air conditioner is Air conditioner OFF ON OFF gt Voltage of each switch A C operating Injection timing TAUZ Indicates injection timing Displayed range 0 to 200 msec Engine is cool when started completely warmed up 1 4 to 2 5 msec PIM THW 1 voltage Injection timing TAUZ Indicates injection timing Displayed range 0 to 200 msec Engine warmed up and idling air conditioner is OFF shift lever is in N position 1 4 to 1 8 msec PIM THW OX1 voltage Injection timing TAUZ Indicates injection timing Displayed range 0 to 200 msec Engine speed is 2000 r min air conditioner is OFF shift lever is in N position 1 3 to 1 8 msec PIM THW 1 voltage Injection timing Indicates injection timing Displayed range 0 to 200 Engine speed is 3000 r min air conditioner is OFF shift 1 0 to 1 5 msec PIM THW 1 voltage is when the throttle is complete
112. ygen sensor No 2 does not have heater control drive with a moderate level of load after the engine is completely warmed up If there are any abnormalities the check engine warning light will remain on while the procedure is performed 4 Vehicle Speed 70 km h 10 km h IG OFF More Than 20 Sec 1 More Than 50 Sec 4 lt Idling More Than 400 Sec 2 Driving With The Engine Warm 3 A140625J01 CIRCUIT DIAGRAM See Page ES 44 ENGINE CONTROL EFI SYSTEM 3SZ VE K3 VE ES 51 INSPECTION PROCEDURE HINT Read the freeze frame data using the DS Il Freeze frame data records aspects of the engine s condition when malfunctions occur This information is helpful whnen troubleshooting 1 READ DTCs a Connect the DS II to the DLC b Turn the ignition switch to the ON position and delete the DTCs by following the prompts on the DS Il screen See page ES 8 Perform a road test d Check for DTCs following the prompts on the DS Il screen See page ES 8 1 Check if DTC P0136 27 is indicated o Result Tester Display Proceed to Indicates P0136 27 A Indicates P036 27 and other codes B Indicates a normal code If DTC P0136 27 other DTCs are output at the same time check the other codes first GO TO RELEVANT DTC CHART gt CHECK FOR INTERMITTENT PROBLEMS ES 52 ENGINE CONTROL EFI SYSTEM 3S

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